It's subsitution.
-(-10)^2 + (-10) --) -(100) + (-10) --) -100 - 10 --) -110.
g(-10) = -110
Answer:
-110
Step-by-step explanation:
g(x) = -x^2 + x
g(-10) = -(-10)^2 + (-10)
g(-10) = -100 - 10