class 9 maths chapter 2 assignment

(iii) 5t – √7 Thus, the required remainder = 0, (ii) The zero of \(x-\frac { 1 }{ 2 }\) is \(\frac { 1 }{ 2 }\) (ii) x = – 1 ∴ p(0) = (0)3 + 3(0)2 + 3(0) + 1 = 1000000000 – 8 – 6000(1000 – 2) = x(x2 – 1) – 2(x2 -1) = (x2 – 1)(x – 2) (vii) P (x) = 3x2 – 1, x = – \(\frac { 1 }{ \sqrt { 3 } }\),\(\frac { 2 }{ \sqrt { 3 } }\) It is not a polynomial, because one of the exponents of y is -1, Solution: Thus, zero of 3x is 0. After the completion of chapters from NCERT Books and Exemplar Books, students should go for Assignments. Solution: ⇒ cx + d = 0 ⇒ cx = -d ⇒ \( x =-\frac { d }{ c }\) = 10000 + (-9) + 20 = 9120 [Hint See question 9] Solution: Along with recalling the knowledge of linear … Exercise 1.1 Exercise 1.2 Exercise 1.3 Exercise 1.4 Exercise 1.5 Exercise 1.6 ... Class 9 Mathematics Notes are free and will always remain free. = 27 – 4(9) + 3 + 6 Since, \(p(\frac { 1 }{ 2 } )\) ≠ 0, so, x = \(\frac { 1 }{ 2 }\) is not a zero of 2x + 1. (i) We know that State reasons for your answer. Class 9 Mathematics Notes for FBISE. Thus, the possible length and breadth are (5a – 3) and (5a – 4). = (2a)3 + (b)3 + 6ab(2a + b) (i) We have 4x2 – 3x + 7 = 4x2 – 3x + 7x0 = 8x3 + 1 + 6x(2x + 1) = (y – 1)[2y(y + 1) + 1(y + 1)] Thus, 7 + 3x is not a factor of 3x3 + 7x. = 8a3 – 27b3 – 18ab(2a – 3b) GoyalAssignments.com provides Free Downloads of Study materials (Assignments, Model Test Paper, Sample Paper, Previous Paper) of all subjects for CBSE Class 9 & 10 students. Class 9 Chapter 2 Polynomials Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. (vii) The degree of 7x3 is 3. Chapter 9 Trigonometric Ratios – Mathematics Easter Holiday Assignment Chapter 9.2 Finding Trigonometric Ratios by Constructing Right-Angled Triangles Key Points If one of the trigonometric ratios of an acute angle θ = 4 1 cos e.g. Thus, the required remainder = 1. We have, (x + 4) (x + 10) = x2+(4 + 10) x + (4 x 10) ⇒ k = √2 -1, (iv) Here, p(x) = kx2 – 3x + k p( 2) = 2 + 2 + 2(2)2 – (2)3 (ii) 2x2 + 7x + 3 = 10000 + (-900) + 20 = 9120, (iii) We have 104 x 96 = (100 + 4) (100 – 4) Mathematics Part - II Solutions Textbook Solutions for Class 9 Math. Chapter 4 Linear Equations in Two Variables. = -1 = \(\frac { 1 }{ 2 }\) (x + y + z)[2(x2 + y2 + z2 – xy – yz – zx)] The highest power of the variable x is 3. (i) 10 (ii) 17 (iii)2+ 2 2. (iv) x3 – x2 – (2 +√2 )x + √2 Find the zero of the polynomial in each of the following cases (i) 4 x2 + 9y2 + 16z2 + 12xy – 24yz – 16xz These assignments will be available in updated form along with new assignments and chapter wise tests with solutions. Thus, the possible dimensions of the cuboid are 4k, (3y + 5) and (y -1). = 4[3ky2 + 2ky – 5k] = 4[k(3y2 + 2y – 5)] = (4a – 3b)(4a – 3b)(4a – 3b). Chapter-9 Chapter-2 Sol. We know that if x + y + z = 0, then x3 + y3 + z3 = 3xyz ⇒ x + 5 = 0 ∴ The possible dimensions of the cuboid are 3, x and (x – 4). Verify that = (4a – 3b)3 (iii) (3x + 4) (3x – 5) (ii) p(x)= x3 + 3x2 + 3x + 1, g (x) = x + 2 (iv) Let p (x) = x3 – x2 – (2 + √2) x + √2 Here, exponent of every variable is a whole number, but x10 + y3 + t50 is a polynomial in x, y and t, i.e., in three variables. (v) 5 + 2x (iv) We have, p(x) = 3x – 2. Question 9. = 3x(2x + 3) – 2(2x + 3) Use suitable identities to find the following products Click on exercise or topic link below to get started. CBSE Worksheets for Class 11 Maths: One of the best teaching strategies employed in most classrooms today is Worksheets. Solution: = k – 3 + k because each exponent of y is a whole number. Solution: [Using (x + a)(x + b) = x2 + (a + b)x + ab] ⇒ p (- 1) = 0 = (3 – 5a)3 12x2 – 7x + 1 = 12x2 – 4x- 3x + 1 Thus, x3 – 2x2 – x + 2 = (x – 1)(x + 1)(x – 2), (ii) We have, x3 – 3x2 – 9x – 5 Verify Since, p(x) = 0 Solution: (iv) We have y + \(y+\frac { 2 }{ y }\) = y + 2.y-1 is given, we can find the other two trigonometric ratios (i.e. (ii) (102)3 [Using (a – b)3 = a3 – b3 – 3ab (a – b)] (x + y + z)2 = x2 + y2 + z2 + 2xy + 2yz + 2zx, (i) (x + 2y + 4z)2 So, (x+ 1) is a factor of x3 + x2 + x + 1. Solution: = ( 100)2 + (3 + 7) (100)+ (3 x 7) = 4x (3x – 1 ) -1 (3x – 1) (ii) 2x2 + y2 + 8z2 – 2√2xy + 4√2yz – 8xz We have, (x + y)3 = x3 + y3 + 3xy(x + y) …(1) Solution: (iii) We have 3 √t + t√2 = 3 √t1/2 + √2.t Answers to each and every question is explained in an easy to understand way, with videos of all the questions. Thus, the required remainder = \(\frac { 27 }{ 8 }\). Chapter-2 Chapter-10 Sol. Evaluate the following using suitable identities ⇒ x3 + y3 – 3xyz = -z3 (x + a) (x + b) = x2 + (a + b) x + ab Question 2. ⇒ (x + y)3 – 3(x + y)(xy) = x3 + y3 ∴ 993 = (100 – 1)3 You have these advantages of browsing notes from our website. Since, p(x) = 0 = (2x + 1)(x + 3) Without actually calculating the cubes, find the value of each of the following = 4x2 + y2 + z2 – 4xy – 2yz + 4zx, (iii) (- 2x + 3y + 2z)2 = (- 2x)2 + (3y)2 + (2z)2 + 2 (- 2x) (3y)+ 2 (3y) (2z) + 2 (2z) (- 2x) (iii) x4 + 3x3 + 3x2 + x + 1 (i) We have, (x+ 4) (x + 10) ∴ (-12)3 + (7)3 + (5)3 = 3[(-12)(7)(5)] and (x – y)3 = x3 – y3 – 3xy(x – y) …(2), (i) (2x + 1)3 = (2x)3 + (1)3 + 3(2x)(1)(2x + 1) [By (1)] Chapterwise basic concepts & formulas for classes IX & X, Assignment pdf for math for classes IX & X NCERT Mathematics Book[10] with solutions NCERT Book NCERT Sol. = k – √2 + 1 = 0 = (3x + y + z)[(3x)3 + y3 + z3 – (3x × y) – (y × 2) – (z × 3x)] Hence, verified. We have, 27y3 + 125z3 = (3y)3 + (5z)3 NCERT Solutions for Class 9 Maths Chapter 2 Polynomials Ex 2.1 are part of NCERT Solutions for Class 9 Maths. (ii) 35y2+ 13y -12 = 35y2 + 28y – 15y -12 (i) 8a3 +b3 + 12a2b+6ab2 ⇒ (x – y)(x2 + y2 + xy) = x3 – y3 = \(\frac { 1 }{ 2 }\) (x + y + 2)[(x2 + y2 – 2xy) + (y2 + z2 – 2yz) + (z2 + x2 – 2zx)] = (x + 1)[x(x – 5) + 1(x – 5)] (i) We have, 9x2 + 6xy + y2 = (y – 1)(y + 1)(2y +1), Question 1. ⇒ x3 + y3 + 3xy(x + y) = -z3 (i) We have, 3x2 – 12x = 3(x2 – 4x) = (3x + y + z)(9x2 + y2 + z2 – 3xy – yz – 3zx). (iii) x2 – \(\frac { { y }^{ 2 } }{ 100 }\) Since, p(x) = 0 = 4k x (3y + 5) x (y – 1) Solution: = 1 – 1 + 1 – 1 + 1 = 1000000 – 1 – 300(100 – 1) (i) 4x2 + 9y2 + 16z2 + 12xy – 24yz – 16xz Teachoo provides the best content available! (v) The zero of 5 + 2x is \(-\frac { 5 }{ 2 }\) . Using the identity, (v) (3 – 2x) (3 + 2x) Volume of a cuboid = (Length) x (Breadth) x (Height) (i) Here, p(x) = x2 + x + k (i) x + 1 Solutions to all NCERT Exercise Questions and Examples of Chapter 2 Class 9 Polynomials are provided free at Teachoo. Factorise the following using appropriate identities NCERT Solutions Class 9 Maths Chapter 2 Polynomials are worked out by the experts of Vedantu to meet the long-standing demand of CBSE students preparing for Board and other competitive Exams. (i) x = 0 1et p(x) = 5x – 4x2 + 3 (ii) We have, p(x) x3 + 3x2 + 3x + 1 and g(x) = x + 2 The highest power of variable t is 1. p(-π) = (-π)3 + 3(- π)22 + 3(- π) +1 [Using (a – b)3 = a3 – b3 – 3ab (a – b)] = x2 – 2x – 80, (iii) We have, (3x + 4) (3x – 5) = x2(x + 1) + 12x(x +1) + 20(x + 1) Thus, the required remainder is -π3 + 3π2 – 3π+1. Exercise 14.1 Solution. Chapter-3 Chapter-11 Sol. = (- √2x)2 + (y)2 + (2 √2z)2y + 2(- √2x) (y)+ 2 (y) (2√2z) + 2 (2√2z) (- √2x) Homework Help with Chapter-wise solutions and Video explanations. ∴ (28)3 + (-15)3 + (-13)3 = 3(28)(-15)(-13) (iv) We have, p(x) = (x + 1)(x – 2) (v) x10+ y3+t50 = 2(-1) + 1 + 2 – 1 ∴ p(1) = (1)2 – 1 = 1 – 1=0 Write the coefficients of x2 in each of the following = 2 x \(\frac { 1 }{ 2 }\) x (x + y + z)(x2 + y2 + z2 – xy – yz – zx) ∴ p (- 1) =(- 1)3- (-1)2 – (2 + √2)(-1) + √2 Terms of Service. ⇒ p(-1) = 0, so g(x) is a factor of p(x). Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Maths for Class 9 so that you can refer them as and when required. There is plenty to learn in this chapter about the definition and examples of polynomials, coefficient, degrees, and terms in a polynomial. (iii) p (x) = kx2 – √2 x + 1 ⇒ 3x – 2 = 0 (iii) The given polynomial is \(\frac { \pi }{ 2 } { x }^{ 2 }\) + x. (v) We have, p(x) = x2 ⇒ p(3) = 0, so g(x) is a factor of p(x). (iii) p (x) = x3 – 4x2 + x + 6, g (x) = x – 3 = (3y + 5z)[(3y)2 – (3y)(5z) + (5z)2] (i) x3 – 2x2 – x + 2 Download NCERT Solutions for Class 9 Maths in Hindi Medium for CBSE Board, UP Board (High School), MP Board, Gujrat Board and other board’s students who are following NCERT Books. = (3x -1) (4x -1) (i) We have, (-12)3 + (7)3 + (5)3 = (x – 1)(x + 1)(x – 2) Learn about the degree of a polynomial and the zero of a polynomial with related Maths solutions. = (2a – b) (2a – b) (2a – b), (iii) 27 – 125a3 – 135a + 225a2 Question 4. [Using a3 + b3 + 3 ab(a + b) = (a + b)3] The zero of x + 1 is -1. (i) 25a2 – 35a + 12 = 25a2 – 20a – 15a + 12 = 5a(5a – 4) – 3(5a – 4) = (5a – 4)(5a – 3) (vii) 7x3 ∴ p (-1) = (-1)3 + (-1)2 + (-1) + 1 . All the chapterwise questions with solutions to help you to revise complete CBSE syllabus and score more marks in Your board examinations. CBSE Class 11 Maths Worksheet for students has been used by teachers & students to develop logical, lingual, analytical, and … P(2) = (2 – 1)(2 + 1) = (1)(3) = 3. = 2 + 0 + 0 – 0=2 [Using a3 + b3 + 3 ab(a + b) = (a + b)3] = 0 + 0 + 0 + 1 = 1 Factorise (i) The given polynomial is 2 + x2 + x. Solutions to all NCERT Exercise Questions and Examples of Chapter 2 Class 9 Polynomials are provided free at Teachoo. ∴ p(3) = (3)3 – 4(3)2 + 3 + 6 Note: Important questions have also been marked for your reference. Practise the solutions to understand how to use the remainder theorem to work out the remainder of a polynomial. Thus, 3x2 – x – 4 = (3x – 4)(x + 1), Question 5. So, the degree of the polynomial is 3. These 9th class math notes notes contain theory of each and every chapter, solutions to every exercise and review exercises which are great for reviewing giant exercises. = x2 (x + 1) – 4x(x + 1) – 5(x + 1) (v) We have, p(x) = 3x. The coefficient of x2 is 0. It is a polynomial in one variable i.e., y (iii) 104 x 96 = (x + 1)(x2 – 5x + x – 5) = (2y -1)2 (ii) We have y2 + √2 = y2 + √2y0 (ii) We have, p(x) = 5x – π (iv) (3a -7b – c)z P(1) = 2 + 1 + 2(1)2 – (1)3 Thus, the required remainder is \(-\frac { 27 }{ 8 }\) . (i) Let p (x) = x3 + x2 + x + 1 Chapter-wise NCERT Solutions for Class 9 Maths Chapter 2 Polynomials solved by Expert Teachers as per NCERT (CBSE) Book guidelines. Ex 2.1 Class 9 Maths Question 3. DronStudy provides you Chapter wise Solutions for Class 9th Maths, Science and Social Studies. We know that Solution: = x3 + y3 + z3 – 3xyz = L.H.S. (i) The degree of x2 + x is 2. (v) The degree of 3t is 1. What are the possible expressions for the dimensions of the cuboids whose volumes are given below? Let p(x) = x3 + 3x2 + 3x +1 (ii) Volume 12ky2 + 8ky – 20k k = -2 – √2 = -(2 + √2), (iii) Here, p (x) = kx2 – √2 x + 1 Download free printable assignments for CBSE Class 9 Mathematics with important chapter wise questions, students must practice NCERT Class 9 Mathematics assignments, question booklets, workbooks and topic wise test papers with solutions as it will help them in revision of important and difficult concepts Class 9 Mathematics.Class Assignments for Grade 9 Mathematics, … These ncert book chapter wise questions and answers are very helpful for CBSE board exam. (iv) √2 x – 1 (iii) The given polynomial is 5t – √7 . So, it is a cubic polynomial. = x(3x – 4) + 1(3x – 4) = (3x – 4)(x + 1) Since, p(1) = 2(1)2 + k(1) + √2 Download File. (i) 103 x 107 Chapter - 3 Pair of Linear Equations. (iii) Let p (x) = x4 + 3x3 + 3x2 + x + 1 . p(2) = (2)3 = 8 Also, p(-1) = (-1)2 -1 = 1 – 1 = 0 = (3x + y)(3x + y), (ii) We have, 4y2 – 4y + 12 In this … So, it is not a polynomial in one variable. ⇒ p (-1) ≠ 0 The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.. For a better understanding of this chapter… (iv) (y2+ \(\frac { 3 }{ 2 }\)) (y2– \(\frac { 3 }{ 2 }\)) Hence, verified. Since, p(0) = 0, so, x = 0 is a zero of x2. ⇒ (x + y)(x2 + y2 – xy) = x3 + y3 Since, p(-1) = 0, so, x = -1 is a zero of (x + 1)(x – 2). (iii) 3 √t + t√2 Question 10. Contains solved exercises, review questions, MCQs, important board questions and chapter overview. (ii) p(-1) = 5(-1) – 4(-1)2 + 3 Represent the following irrational numbers on number line. (iv) The degree of 1 + x is 1. = 1 – 3 + 3 – 1 + 1 = 1 = (2y)2 + 2(2y)(1) + (1)2 (ii) 2 – x2 + x3 Let x = 28, y = -15 and z = -13. = 1000000000 – 8 – 6000000 +12000 = 2k – 3 = 0 ⇒ x + y = -z (x + y)3 = (-z)3 = 4 x k x (3y2 + 2y – 5) Solution: The coefficient of x2 is -1. (i) We have, p (x)= 2x3 + x2 – 2x – 1 and g (x) = x + 1 (iii) 27-125a3 -135a+225a2 Hence, verified. sin θ and tan θ) without evaluating θ. Class 9 maths printable worksheets, online practice and online tests. Since, p(x) = 0 => ax = 0 => x-0 = 7y(5y + 4) – 3(5y + 4) = (5 y + 4)(7y – 3) It is a complete package of solutions to problems of your really tough book. So, (x + 1) is not a factor of x4 + x3 + x2 + x+ 1. (ii) (28)3 + (- 15)3 + (- 13)3 Thus, x3 – 3x2 – 9x – 5 = (x + 1)(x – 5)(x +1), (iii) We have, x3 + 13x2 + 32x + 20 The highest = (2x + 3)(3x – 2) (ii) We have, 12ky2 + 8ky – 20k (v) 3t (iv) Since, 3 = 3x° [∵ x°=1] (ii) 64m3 – 343n3 [Using a2 – 2ab + b2 = (a- b)2] Solution: Question 13. Chapter 2: Polynomials. (ii) p (x) = 2x2 + kx + √2 = 1000000 + 8 + 600(100 + 2) CBSE Class 9 Maths Worksheet for students has been used by teachers & students to develop logical, lingual, … (x+ a) (x+ b) = x2 + (a + b) x+ ab. = (4m – 7n)(16m2 + 28mn + 49n2), Question 11. So, the degree of the polynomial is 1. This solution is strictly revised in accordance … So, (x + 1) is not a factor of x4 + 3x3 + 3x2 + x+ 1. because each exponent of x is a whole number. (ii) (2x – y + z)2 ∴ \(p(-\frac { 1 }{ 3 } )\quad =\quad 3(-\frac { 1 }{ 3 } )\quad +\quad 1\quad =\quad -1\quad +\quad 1\quad =\quad 0\) ∴ p (-1)= (-1)4 + 3 (-1)3 + 3 (-1)2 + (- 1) + 1 (iii) (- 2x + 3y + 2z)2 = (x + 1)(x2 + 12x + 20) = (100)2-42 On signing up you are confirming that you have read and agree to = a3 – a3 + 6a – a = 5a (iv) p (x) = kx2 – 3x + k Find the value of k, if x – 1 is a factor of p (x) in each of the following cases = (- √2x + y + 2 √2z) (- √2x + y + 2 √2z), Question 6. = 8x3 + 12x2 + 6x + 1, (ii) (2a – 3b)3 = (2a)3 – (3b)3 – 3(2a)(3b)(2a – 3b) [By (2)] x3 +y3 +z3 – 3xyz = \(\frac { 1 }{ 2 }\) (x + y+z)[(x-y)2 + (y – z)2 +(z – x)2] (i) 2 + x2 + x (iv) 64a3 -27b3 -144a2b + 108ab2 = (x + 1)[x(x + 2) + 10(x + 2)] Solution: = -2 + 1 + 2 -1 = 0 So, it is a linear polynomial. Chapter-10 Chapter-3 Sol. (i)We have, 103 x 107 = (100 + 3) (100 + 7) Variables and expression are called as indeterminate and coefficients. p(2) = (2)2 – 2 + 1 = 4 – 2 + 1 = 3 NCERT Solutions for Class 9 Maths are a set of solutions in the form of chapter-wise solutions made specifically for Class 9th students. (i) 9x2 + 6xy + y2 (iv) x + π Thus, zero of 3x – 2 is \(\frac { 2 }{ 3 }\). Thus, the value of 5x – 4x2 + 3 at x = 0 is 3. (vi) p (x)= ax, a≠0 ∴ p(-1) = (-1 +1) (-1 – 2) = (0)(- 3) = 0 Question 12. (vi) The degree of r2 is 2. Question 3. (iii) 6x2 + 5x – 6 Which of the following expressions are polynomials in one variable and which are not? Rearranging the terms, we have x3 – x – 2x2 + 2 Answers to each and every question is explained in an easy to understand way, with videos of all the questions. ⇒ (x + y)[(x + y)2-3xy] = x3 + y3 Class 9 Maths Chapter 2 Polynomials This chapter guides you through algebraic expressions called polynomial and various terminologies related to it. = (2y – 1)(2y – 1 ), Question 4. (i) x3 + y3 = (x + y)-(x2 – xy + y2) (ii) The given polynomial is 2 – x2 + x3. (i) x3+x2+x +1 Download NCERT Solutions For Class 9 Maths in PDF based on latest pattern of CBSE in 2020 - 2021. x3 + y3 = (x + y)(x2 – xy + y2) Question 2. Exercise 13.1 Solution. (ii) x4 + x3 + x2 + x + 1 Ex 2.1 Class 9 Maths Question 1. = (y – 1)(2y2 + 2y + y + 1) ∴ p(a) = (a)3 – a(a)2 + 6(a) – a (ii) 8a3 -b3-12a2b+6ab2 which is not a whole number. Get here MCQs on Class 9 Maths Chapter 2- Polynomials with answers. (ii) Here, p (x) = 2x2 + kx + √2 Hence, if x + y + z = 0, then (iv) The given polynomial is √2 x – 1. We have, (3x + 4) (3x – 5) = (3x)2 + (4 – 5) x + (4) (- 5) Thus, 2×2 + 7x + 3 = (2x + 1)(x + 3), (iii) We have, 6x2 + 5x – 6 = 6x2 + 9x – 4x – 6 = 10000 – 16 = 9984, Question 3. = (x + 1)(x + 2)(x + 10) (i) ∵ (x + y)3 = x3 + y3 + 3xy(x + y) (ii) Area 35y2 + 13y – 12 (ii) x3 – y3 = (x – y) (x2 + xy + y2) Let x = -12, y = 7 and z = 5. = 8a3 – 27b3 – 36a2b + 54ab2, Question 7. The coefficient of x2 is 1. = (4a)3 – (3b)3 – 3(4a)(3b)(4a – 3b) Find the remainder when x3 + 3x2 + 3x + 1 is divided by ⇒ x3 + y3 + 3xy(-z) = -z3 [∵ x + y = -z] Factorise 27x3 +y3 +z3 -9xyz. ⇒ 2x = -5 (i) p(x)=x+5 = (4m – 7n)[(4m)2 + (4m)(7n) + (7n)2] ∴ p(-2) = (-2)3 + 3(-2)2+ 3(-2) + 1 Since, p(2) = 0, so, x = 2 is also a zero of (x + 1)(x – 2). (i) p(x) = 3x + 1,x = –\(\frac { 1 }{ 3 }\) It is not a polynomial, because one of the exponents of t is \(\frac { 1 }{ 2 }\), = x3 + x2 + 12x2 + 12x + 20x + 20 Download free printable assignments for CBSE Class 9 Polynomials with important chapter wise questions, students must practice NCERT Class 9 Polynomials assignments, question booklets, workbooks and topic wise test papers with solutions as it will help them in revision of important and difficult concepts Class 9 Polynomials.Class Assignments for Grade 9 Polynomials, … Question from very important topics are covered by NCERT Exemplar Class 9.. You also get idea about the type of questions and method to answer in your Class 9th … (i) (99)3 = 2 + 2 + 8 – 8 = 4 NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12. Thus, the value of 5x – 4x2 + 3 at x = 2 is – 3. = (x + y + z)(x2 + y2 + z2 – xy – yz – zx) Ex 2.1 Class 9 Maths Question 2. = 3[-420] = -1260, (ii) We have, (28)3 + (-15)3 + (-13)3 = 1000000 + 8 + 60000 + 1200 = 1061208, (iii) We have, 998 = 1000 – 2 ∴p(0) = 2 + 0 + 2(0)2 – (0)3 = x2 + 4y2 + 16z2 + 4xy + 16yz + 8 zx, (ii) (2x – y + z)2 = (2x)2 + (- y)2 + z2 + 2 (2x) (- y)+ 2 (- y) (z) + 2 (z) (2x) (ii) p (t) = 2 +1 + 2t2 -t3 (vi) p (x) = 1x + m, x = – \(\frac { m }{ 1 }\) ∴ p(0) = (0 – 1)(0 + 1) = (-1)(1) = -1 Solution: = \(\frac { 1 }{ 2 }\)(x + y + z)[(x – y)2+(y – z)2+(z – x)2] (iii) y + y2+4 Expand each of the following, using suitable identity ⇒ (x – y)3 + 3xy(x – y) = x3 – y3 Solution: Factorise Factorise each of the following Factorise Question 1. (vii) p (x) = cx + d, c ≠ 0 where c and d are real numbers. Class-IX CHAPTER – 1 Number System (Maths Assignment) 1. (ii) x – \(\frac { 1 }{ 2 }\) So, it is a linear polynomial. the remainder is not 0. So, (x + 1) is not a factor of x3 – x2 – (2 + √2) x + √2. = 994011992, Question 8. Thus, the value of 5x – 4x2 + 3 at x = -1 is -6. Solution: Extra questions based on the topic Number System. (i) 27y3 + 125z3 We have, (3x)3 + (y)3 + (z)3 – 3(3x)(y)(z) (i) Area 25a2 – 35a + 12 (iii) P (x) = x3 (v) We have x10+ y3 + t50 Check whether 7 + 3x is a factor of 3x3+7x. Solution: (iii) We have, = x3 – 4x2 + x + 6 and g (x) = x – 3 NCERT Exemplar Class 9 Maths is very important resource for students preparing for IX Board Examination.Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 9. Solution: So, the degree of the polynomial is 2. = (2a – b)3 Question 15. (i) The given polynomial is 5x3 + 4x2 + 7x. Maths Assignment Class 9th Chapter 1 Important questions based on chapter 1 class 9. To help students in making easy preparations, we are providing the MCQs for class 9 NCERT Maths. Telanagana State Board Class 9 Mathematics Textbook Solution Chapter-wise Telanagana SCERT Class IX Math Solution. (iv) 1 + x (iv) p (x) = 3x – 2 Since, x + y + z = 0 They give a detailed and stepwise explanation of each answer to the problems given in the exercises in the NCERT … = (- √2x + y + 2 √2z)2 ⇒ x = \(\frac { -5 }{ 2 }\) CBSETuts.com provides you Free PDF download of NCERT Exemplar of Class 9 Maths chapter 2 Polynomials solved by expert teachers as per NCERT (CBSE) book guidelines. = (3y + 5z)(9y2 – 15yz + 25z2), (ii) We know that Give possible expressions for the length and breadth of each of the following rectangles, in which their areas are given Since, p(1) = (1)2 +1 + k We have, 64m3 – 343n3 = (4m)3 – (7n)3 = 2 + 1 + 2 – 1 = 4 x3 + y3 + z3 = 3xyz, Question 14. Question 2. Solution: = (x + 1)(x2 + 2x + 10x + 20) 10 Questions. Thus, zero of ax is 0. (iv) The zero of x + π is -π. (ii) x – x3 Extra questions for class 9 maths chapter 1 with solution. Thus, 2y3 + y2 – 2y – 1 Question 3. (v) (- 2x + 5y – 3z)2 Solution: Thus, zero of x – 5 is 5. We have, (x + 8) (x – 10) = x2 + [8 + (-10)] x + (8) (- 10) ⇒ 3x = 0 ⇒ x = 0 (i) We have , p(x) = 3x + 1 (ii) 4y2-4y + 1 ∴ \(p(\frac { 1 }{ 2 } )\quad =\quad 2(\frac { 1 }{ 2 } )+1=\quad 1+1\quad =\quad 2\) These expert faculties solve and provide the NCERT Solution for class 9 so that it would help students to solve the problems comfortably. Exercise 9.2 book solutions are also applicable for UP board ( High school ) NCERT and. Both are available in PDF based on latest pattern of CBSE in 2020 - 2021 answers! In updated form along with questions of NCERT solutions for Class 9 Mathematics Textbook solution Chapter-wise telanagana SCERT Class Math! Book complete the topic Maths Chapter 2- Polynomials with answers get here MCQs on Class 9 Maths Chapter Polynomials! 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