Question

Hi..


Factorise the following

1) x(x + 2)(x + 4) + 4x + 8
2)(x+2)(x^2+25)+10x^+20x​

Answer 1

(1)=x(x+2)(x+4)+4x+8

=x(x+2)(x+4)+4(x+2)

=(x+4)(x+2)(x+4)

(2)=(x+2)(x^2+25)+10x+20x

=(x+2)(x+5)^2-50x+10x+20x

=(x+2)(x+5)^2-20x