Question

(a2+a)2 + 4(a2+a) – 12

Answer 1

Step-by-step explanation:

(a²+a)²+4(a²+a)-12

let a²+a be x

x²+4x-12

x²+6x-2x-12

x(x+6)-2(x+6)

(x-2)(x+6)

now put x= a²+a

(a²+a-2)(a²+a+6)