Question

Order the steps to factor 2x4 – 2y 4 completely.

Answer 1

step 1: factor out a 2: 2(x^4-y^4)
step 2: 2(x²+y²)(x²-y²)
step 3: 2(x²+y²)(x+y)(x-y)

Answer 2

2x^4 - 2y^4
= 2(x^4 - y^4)