Question

Please help me asap, it's missing :/

Answer 1

Explanation:

g(f(x)) means that we first take x and calculate f(x).

then we take that result and use as input value for g(x).

x = -5

f(-5) = (-5)² + -5 - 12 = 25 - 5 - 12 = 8

and now

g(8) = -2×8 - 15 = -16 - 15 = -31

g(f(-5)) = -31