R s aggarwal solutions mathematics class 8 Solutions for Chapter 7 factorisation

Factorise: x^2-36

Factorise: 12x + 15

Factorise: 14m – 21

Factorise: 4a^2-9

Factorise: 81-49x^2

Factorise: 9n-12n^2

Factorise: 16a2 – 24ab

Factorise: 16a^2-24ab

Factorise: 15ab^2-20a^2b

Factorise: 12x^2y^3-21x^3y^2

Factorise: 24x^3-36x^2y

Factorise: 10x^3-15x^2

Factorise: 36x^3y-60x^2y^3z

Factorise: 9x^3-6x^2+12x

Factorise: 8x^2-72xy+12x

Factorise: 18a^3b^3-27a^2b^3+36a^3b^2

Factorise: 14x^3+21x^4y-28x^2y^2

Factorise: 2m(1-n) + 3(1-n)

Factorise: x(a-3) + y(3-a)

Factorise: -5-10t+20t^2

Factorise: x(x+3) + 5(x+3)

Factorise: 5x(x-4) -7(x-4) ** **

Factorise: 6a(a-2b) + 5b(a-2b)

Factorise: x^3(2a-b)+x^2(2a-b)

Factorise: 9a(3a-5b)-12a^2(3a-5b)

Factorise: (x+5)^2-4(x+5)

Factorise: 3(a-2 b)^{2}-5(a-2 b)

Factorise: 2a+6b-3(a+3b)^2

Factorise: 16(2p-3q)^2-4(2p-3q)

Factorise: 4x^2-9y^2

Factorise: 16a^2-225b^2

Factorise: 9a^2b^2-25

Factorise: 16a^2-144

Factorise: 63a^2-112b^2

Factorise: 20a^2-45b^2

Factorise:

12x^2-27

Factorise: x^3-64x

Factorise: 16x^5-144x^3

Factorise: 3x^5-48x^3

Factorise: 16p^3-4p

Factorise: x^2+8x+16

Factorise: x^2+14x+49

Factorise: 1+2x+x^2

Factorise: 9+6z+z^2

Factorise: x^2+6ax+9a^2

Factorise: 4y^2+20y+25

Factorise: 36a^2+36a+9

Factorise: 9m^2+24m+16

Factorise: Z^2+z+1/4

Factorise: x^2+5x+6

Factorise: y^2+10y+24

Factorise: z^2+12z+27

Factorise: p^2+6p+8

Factorise: x^2+15x+56

Factorise: y^2+19y+60

Factorise: x^2+13x+40

Factorise: q^2-10q+21

Factorise: p^2+6p-16

Factorise: x^2-10x+24

Factorise: x^2-23x+42

Factorise: x^2-17x+16

Factorise: y^2-21y+90

Factorise: x^2-22x+117

Factorise: x^2-9x+20

Factorise: x^2+x-132

Factorise: x^2+5x-104

Factorise: y^2+7y-144

Factorise: z^2+19z-150

Factorise: y^2+y-72

Factorise: a^2+6a-91

\left(7a^2-63b^2\right)=?

a) (7a – 9b) (9a + 7b)

b) (7a – 9b) (7a + 9b)

c) 9(a – 3b) (a + 3b)

d) 7(a – 3b) (a + 3b)

\left(2x-32x^3\right)=?

a. 2(x-4)(x+4

\text{ b. }2x(1-2x)^2

\text{ c. }2x(1+2x)^2

d. 2x(1-4x)(1+4x)

x^3-144x=?

\text{ a. }x(x-12)^2

\text{ b. }x(x+12)^2

c. x(x-12)(x+12)

d. none of these

\left(2-50x^2\right)=?

\text{ a. }2(1-5x)^2

\text{ b. }2(1+5x)^2

c. (2-5x)(2+5x)

d. 2(1-5x)(1+5x)

a^2+bc+ab+ac=?

a. (a+b)(a+c)

b. (a+b)(b+c)

c. (b+c)(c+a)

d. a(a+b+c)

pq^2+q(p-1)-1=?

a. (pq+1)(q-1)

b. p(q+1)(q-1)

c. q(p-1)(q+1)

d. (pq-1)(q+1)

ab –mn +an –bm = ?

a. (a-b) (m-n)

b. (a-m) (b+n)

c. (a-n) (m+b)

d. (m-a) (n-b)

ab –a –b +1 = ?

a. (a-1) (b-1)

b. (1-a) (1-b)

c. (a-1) (1-b)

d. (1-a) (b-1)

x^2-xz+xy-yz=?

a. (x-y)(x+z)

b. (x-y)(x-z)

c. (x+y)(x-z)

d. (x-y)(z-x)

\left(12m^2-27\right)=?

a. (2m-3)(3m-9)

b. 3(2m-9)(3m-1)

c. 3(2m-3)(2m+3)

d. None of these