Question

Please help!! Factor the equation and show your work.
x^2 - 4

Answer 1

(x-2)( x+2 )

Explanation:

Answer 2

(x+2)(x-2)

Explanation:

x²-4
we going to rewrite 4 as in power so x²-2²
then we going to apply the difference of two squares formula since we have the same format which is x²-y²=(x+y)(x-y) , so x²-2² = (x+2)(x-2)
and that's the answer.