How do you factor the expression x squared minus 2?

Answer 1

The polynomial is not factorable with rational numbers. If you want to use Irrational Numbers it would be x minus the square root of 2 times x plus the square root of 2.

Answer 2

Not in real numbers. It can be factored to (x - 2i)(x + 2i) where i is the square root of negative one.

Answer 3

(x^2 - 2x - 2)(x^2 - 2x + 3)

Answer 4

(x-8) (x-8)