Question

Solve for (g-7f)(8) when f(x) = 4x^2-5x+6

Answer 1

what is g(x)?

Answer 2

Sorry it's g(x)=x^2+4

Answer 3

(g-7f)(8)

is the same as

g(8) - 7*f(8)

Answer 4

so you first need to find f(8) and g(8)

Answer 5

f(x) = 4x^2-5x+6

f(8) = 4(8)^2-5(8)+6

f(8) = ??