Factor x^4+2x^2-8

#### Question

#### Answer

Let p = x^2

The original expression is converted to

x^4+2x^2-8

=p^2+2p-8

=(p+4)(p-2)

Substitute p yields result

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

Factor x^4+2x^2-8

Let p = x^2

The original expression is converted to

x^4+2x^2-8

=p^2+2p-8

=(p+4)(p-2)

Substitute p yields result

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