The Quest for 700: Weekly GMAT Challenge

Each week Manhattan GMAT posts a GMAT question on our blog and follows up with the answer the next day. Are you up for the challenge?

em>x⁸ – y⁸ =

(A) (x⁴ – y⁴)²

(B) (x⁴ + y⁴)(x² + y²)(x + y)(x – y)

(C) (x⁶ + y²)(x² – y⁶)

(D) (x⁴ – y⁴)(x² – y²)(x – y)(x + y)

(E) (x² – y²)⁴