Question

(a-8)^-4a factorise it

Answer 1

Answer:

To factorise:-

• (a-8)²-4a

Solution:-

(a-8)²-4a

a²-16a+64-4a .......(Remember:(a-b)²=a²+b²-2ab)

a²-20a+64

a²-4a-16a+64

a(a-4)-16(a-4).......(Note:-(-16-4=20 and -16×-4=64))

(a-16)(a-4)

Correct Answer:-

• (a-16)(a-4)