Question

Factorise the following polynomials:- x(4x-3)+9(4x-3) 3a(x+y)-7b(x+y) Thank you

Answer 1

Answer:

1: (4x-3)(x+9)

2: (x+y)(3a-7b)

Step-by-step explanation:

x(4x-3)+9(4x-3)

(4x-3) is common in both terms, so it can be taken out.

x(4x-3)+9(4x-3) = (4x-3)(x+9)

3a(x+y)-7b(x+y)

(x+y) is common in both terms, so it can be taken out.

3a(x+y)-7b(x+y) = (x+y)(3a-7b)