Question

Factorise:
(a) 4x^2 + 8x +3
(b) 42 − x − x^2
(c) 16x^2+25-40x

Answer 1

a) 4x^2 + 8x + 3
4x^2 + 6x + 2x + 3
2x(2x+3)+1(2x+3)
(2x+1)(2x+3) Ans.

b) 42 - x - x^2
-(x^2 + x - 42)
-(x+7)(x-6)

c) 16x^2 - 40x +25
16x^2 - 20x - 20x +25
4x(4x-5)-5(4x-5)
(4x-5)(4x-5)

Answer 2

its by splitting method hope it helps you plz mark it as brainliest