Answer
$-24x^3+3x^2$
Work Step by Step
RECALL:
(i) $a^m \cdot a^n = a^{m+n}$
(ii) $a(b-c) = ab - ac$
Use the rules above to obtain:
$=(-3x^2)(8x) - (-3x^2)(1)
\\=-24x^{2+1} - (-3x^2)
\\=-24x^3+3x^2$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set - Page 230: 20
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