Answer
$ 12x^{4}+42x^{2}$
Work Step by Step
Apply the Distributive Property.
$6x(2x^{3}+7x)=6x\cdot 2x^{3}+6x\cdot 7x$
$=12x^{1+3}+42x^{1+1}$
$= 12x^{4}+42x^{2}$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 8 - Polynomials and Factoring - 8-2 Multiplying and Factoring - Lesson Check - Page 494: 1
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