Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9




Work Step by Step

Factoring out the greatest common factor of 4x, the given expression, $ 4x-36x^3 ,$ is equivalent to \begin{array}{l}\require{cancel} 4x(1-9x^2) .\end{array} Using $a^2-b^2=(a+b)(a-b)$, the completely factored form of the expression above is \begin{array}{l}\require{cancel} 4x(1+3x)(1-3x) .\end{array}
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