Answer
$R'(a)=18a+6$
Work Step by Step
$R(a)=(3a+1)^2$
Use the chain rule.
$R'(a)=2(3a+1)(3)$
Clean up and simplify.
$R'(a)=18a+6$
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Chapter 2 - Derivatives - 2.3 Differentiation Formulas - 2.3 Exercises - Page 140: 15
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