Question

if f (x)=2x-6 and g (x)=x-2x^2 find the value for g (-3)+13

Answer 1

g(x) = x - 2x^2
g(-3) = -3 - 2(-3)^2 = -3 - 2(9) = -3 - 18 = -21
g(-3) + 13 = -21 + 13 = -8