Question

Factorize a3 +2a - 2a2 - 4

Answer 1

Answer:

$a^{3} - 2a^{2} + 2a-4=(a-2)(a^{2} +2)$

Step-by-step explanation:

$Let p(a)=a^{3} - 2a^{2} + 2a-4\\By hit and trial method, a=2\\=> 2^{3} - 2(2)^{2} +2(2) -4\\=8-8+4-4\\=0\\\\Hence (a-2) is a factor of p(a)$

Answer 2

Refer to the attached image...