Jeff Miller

GMAT OFFICIAL GUIDE PS – If x = -1, then…

GMAT OFFICIAL GUIDE PS 164 – If x = -1, then…

Solution:

To solve, we substitute -1 for x in the equation:

(x^4 – x^3 + x^2)/(x – 1)

((-1)^4 – (-1)^3 + (-1)^2)/(-1 – 1)

(1 – (-1) + 1)/(-2)

(1 + 1 + 1)/(-2)

3/(-2) or -3/2

Answer: A