Answer
$(u^2-4)^3$
Work Step by Step
We know that $f(x)=x^2−4$ and $g(x)=x^3$, so:
$g(f(u))=g(u^2-4)=(u^2-4)^3$
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 1 - Functions - 1.1 Review of Functions - 1.1 Exercises - Page 10: 31
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