Elementary Algebra

Published by Cengage Learning

Chapter 5 - Exponents and Polynomials - 5.3 - Multiplying Polynomials - Problem Set 5.3: 21

Answer

$15x^2+29x-14$

Work Step by Step

Using the Distributive Property and then combining similar terms, the given expression, $(5x-2)(3x+7) ,$ is equivalent to \begin{array}{l}\require{cancel} 5x(3x)+5x(7)-2(3x)-2(7) \\\\= 15x^2+35x-6x-14 \\\\= 15x^2+29x-14 .\end{array}

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