# CBSE Worksheet for chapter-3 Polynomial 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