Answer
$b^{11}$
Work Step by Step
RECALL:
The product rule of exponents states that: $a^m \cdot a^n=a^{m+n}$.
Use this rule to obtain:
$b^4 \cdot b^7 = b^{4+7} = b^{11}$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 1 - Section 1.6 - Properties of Integral Exponents - Exercise Set - Page 79: 1
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