Question

H(r) = 11r² - 6
g(r) = r² + 8r+ 9
Find h(-2) + g(-2)

Answer 1

35

Explanation:

to find h(- 2) substitute r = - 2 into h(r)

h(- 2) = 11(- 2)² - 6 = 11(4) - 6 = 44 - 6 = 38

to find g(- 2) substitute r = - 2 into g(r)

g(- 2) = (- 2)² + 8(- 2) + 9 = 4 - 16 + 9 = - 3

then

h(- 2) + g(- 2) = 38 + (- 3) = 38 - 3 = 35