Question

Let f(x)=x^2+8x. Evaluate f(−4)=

Answer 1

Answer:

f(−4)  = -16

Step-by-step explanation:

f(x)=x^2+8x

f(−4)= $-4^{2}$ + 8 (-4)

       = 16 -32

       = -16

Answer 2

Answer:

f(-4) = - 16

Step-by-step explanation:

f(-4) = (-4)2 + 8(-4)

f(-4) = 16 + -32

f(-4) = - 16