Answer
$$\frac{1}{2}x^2+\frac{1}{4}x^4+C$$
Work Step by Step
$\int x+x^3$ $dx$
$=\frac{1}{1+1}x^{1+1}-\frac{1}{3+1}x^{3+1}+C$
$=\frac{1}{2}x^2+\frac{1}{4}x^4+C$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 13 - Section 13.1 - The Indefinite Integral - Exercises - Page 958: 8
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