If f(x) = x3 and g(x) = 2x + 7, what is f(g(x)] when g(x) = -1?

2 answers
Question:

If f(x) = x3 and g(x) = 2x + 7, what is
f(g(x)] when g(x) = -1?

Answers

Hey there! :)Answer:125.Step-by-step explanation:When g(x) = -1:g(-1) = 2(-1) + 7g(-1) = -2 + 7g(-1) = 5Plug this into f(x) since the question is asking for f(g(x)):f(x) = x³f(5) = 5³f(5) = 125.

Answer:-1Step-by-step explanation: f(x) = x^3 g(x) = 2x + 7f(g(x)] =Let g(x) = -1Replace g(x) with -1f(g(x) = f(-1) = (-1)^3 = -1  

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