Question

Factorize- (x^4+2x^2+9)

Answer 1

pls check n reconfirm your question.....

Answer 2

Let's try
(x^2+3)(x^2+3) -- foil it out we get
x^4+6x^2+9 - middle terms (6x^2) is off by 4x^2
So let's add one more term in our factor to correct that
We will subtract -4x^2 (2x * -2x)
(x^2+ 2x +3)(x^2 -2x +3)