Given the functions, f (x) = 3x^2-7 and g (x) = x^3+1 evaluate f (g (2))

Question

Mathematics

Tyler Berger

20 January, 01:22

Given the functions, f (x) = 3x^2-7 and g (x) = x^3+1 evaluate f (g (2))

+1

Answers (1)

Know the Answer?

Brenden Compton · Answer 1

One way of approaching this problem is to evaluate g (2). Since g (x) = x^3+1, g (2) = 2^3+1 = 9. Next, let this '9' be the input to f (x):

f (x) = 3x^2-7 becomes f (9) = 3 (9) ^2-7, or 3 (81) - 7, or 243 - 7, or 236 (answer).