Let f(x) = x + 2 and g(x) = x2 Find ( g o f)(-5)

Question

A.
-3

B.
9

C. 49
D.
-10

B?

Answer 1

(gof)(x) = g(f) = f^2 = (x+2)^2
(gof)(-5) = (-5+2)^2 = (-3)^2 = 9
B is correct. Good work.

Answer 2

Thank you !