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?
“X to the Fourth”
Problem:
Given that x4 – 25×2 = -144, which of the following is NOT a sum of two possible values of x?
(A) -7
(B) -1
(C) 0
(D) 3
(E) 7
