Question

F(x)=x+7 g(x)=4x^2-9 h(x)=-2x+1 what is the value of f(g(2) and the value of g(f(-2))

Answer 1

9514 1404 393

Answer:

• f(g(2)) = 14
• g(f(-2)) = 91

Explanation:

g(2) = 4(2^2) -9 = 4(4) -9 = 7

f(7) = 7+7 = 14

f(g(2)) = 14

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f(-2) = -2 +7 = 5

g(5) = 4(5^2) -9 = 4(25) -9 = 91

g(f(-2)) = 91