Answer
$$ u= (3x^2 -2x)dx $$
Work Step by Step
$$ u=x^3-x^2\Longrightarrow du =3x^2 dx -2xdx=(3x^2 -2x)dx $$
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 5 - The Integral - 5.7 Substitution Method - Exercises - Page 275: 1
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