Question

H(x) = x^3 - 2x
g(x) = 3x + 4 Find (h+g)(4)

Answer 1

9514 1404 393

Answer:

72

Explanation:

h(4) = 4^3 -2·4 = 64 -8 = 56

g(4) = 3·4 +4 = 16

Then the sum is ...

(h+g)(4) = h(4) + g(4) = 56 +16

(h+g)(4) = 72