Question

Help what does this mean?

Answer 1

multiply every thing by 4 for where x is. so it is F(4)= $x4 + 12+7

Explanation:

Answer 2

Plug in -4 for x
f(-4) = (-4)^2 + 3(-4) + 7
f(-4) = 16 - 12 + 7
Solution: f(-4) = 11