Answer
$\dfrac{4}{x^2}$
Work Step by Step
Factor the numerator and the denominator, then cancel the common factors:
$\require{cancel}
=\dfrac{4(5x)}{5x(x^2)}
=\dfrac{4\cancel{(5x)}}{\cancel{5x}(x^2)}
\\=\dfrac{4}{x^2}.$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 6 - Radical Functions and Rational Exponents - 6-1 Roots and Radical Expressions - Practice and Problem-Solving Exercises - Page 366: 67
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