Question

9a² - (a² - 4) ² factorise​

Answer 1

Answer:

a=1 and 4

Step-by-step explanation:

9a²-(a⁴+16-8a²)

9a²-a⁴-16+8a²

17a²-a⁴-16

Or it can be written as

a⁴-17a²+16

a⁴-16a²-a²+16

a²(a²-16)-1(a²-16)

a²-1(a²-16)

Therefore a=1 and 4

PLEASE MARK AS BRAINLIEST

Answer 2

Answer:

This is your answer I will help you in more questions please mark me in brainlist