The answer to the question is 6/9.
Answer:
x = 2
Step-by-step explanation:
4x +4=12
-4. -4
4x.= 8
divide both saide by 4
x. = 2
Substitute

, so that

. The integral is then equivalent to

Then transforming back to

gives
Factoring the expression would be 6a(2a^2+4a-1)