Question

Let f(x) = x + 8 and g(x) = x – 4. What is f(x) • g(x)?
x2 – 12x + 4

x2 + 4x + 4

x2 + 4x – 32

x2 – 4x – 32

Answer 1

(x+8)(x-4)

Answer 2

what do you get?

Answer 3

x(x-4)+8(x-4)