Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Appendix A - Review - A.4 Factoring Polynomials - A.4 Assess Your Understanding - Page A40: 125



Work Step by Step

We factor out $2x$ and combine like terms as follows: \begin{align*} 2x(2x + 5) + x^2 \cdot 2&= 2x(2x+5+x)\\ &=2x(3x+5). \end{align*}
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