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CBSE Worksheet for chapter-3 Polynomial class 9

Worksheet For class 9

Find CBSE Worksheet for chapter-3 Polynomial class 9

CLASS-9

BOARD: CBSE

Mathematic Worksheet - 3

TOPIC: Polynomial

For other CBSE Worksheet for class 9 Mathematic check out main page of Physics Wallah.

OBJECTIVE

  1. The product of (x+a) (x+b) is
    1. x2 +(a+b)x +ab
    2. x2 -(a-b)x +ab
    3. x2 +(a-b)x +ab
    4. x2 +(a-b)x +ab
  2. The value of (x+2y+2z)2 +(x-2y-2z)2 is
    1. 2x 2 +8y 2+8z2
    2. 2x 2 +8y 2+8z2 +8xyz
    3. 2x 2 +8y 2+8z2 -8yz
    4. 2x 2 +8y 2+8z2+16yz
  3. Find the value of (a3 b3 c3-3abc)/(ab+bc+c-a2 -b2-c2 ), when a=-5, b=-6 c=-10.
    1. 1
    2. -1
    3. 2
    4. -2
  4. In method of factorization of an algebraic expression. Which of the following statement is false?
    1. Taking out common factor from two or more terms
    2. Taking out common factor from a group of terms
    3. By using remainder theorem
    4. By using standard identities.
  5. Degree of zero polynomial is
    1. a) 0
    2. b) 1
    3. c) Both o and 1
    4. d) not defined

SUBJECTIVE

  1. IF = 119 then find the value of a3-1/a3.
  2. Evaluate
    1. (5x +4y)2
    2. (4x-5y)2
    3. (2x-1/x)2
  3. If x2 +1/x2 = 51 find the value of x2+ y3.
  4. Evaluate (a-b)2/(b-c)(c-a) +(b-c)2/(a-b)(c-a) +(c-a)2/(a-b)(b-c) .
  5. Factorize 64a3 -27b3 -144a2b +108ab2
  6. Factorize x4+2x3y -2xy - y4 .

Solutions: to worksheet-3 Topic-Polynomial

Objective:

  1. a
  2. d
  3. a
  4. c
  5. d

Subjective:

  1. 36
    1. 25x2 + 40xy +16y2
    2. 16x2-40xy+25y2
    3. 4x-4+ 1/x2
  2. 364
  3. 3
  4. (4a -3b)〗3
  5. (x-y)(x+y)3

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