Answer: 1
-----------------------------------------------------
Explanation:
Replace every copy of x with -1. Then use PEMDAS to simplify
F(x) = -x^3 - x^2 + 1
F(-1) = -(-1)^3 - (-1)^2 + 1 ... every x has been replaced with -1
F(-1) = -(-1) - 1 + 1
F(-1) = 1 - 1 + 1
F(-1) = 0 + 1
F(-1) = 1
