Question

Factorise:

a) 2y^3-4y^2-2y+4
b) 2x^2+7x+3

Answer 1

b) 2x^2 + 7x + 3

= 2x^2 + 6x + 1x + 3

= 2x(x + 3) + 1(x + 3)

= (2x + 1) (x + 3)