Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 7 - Polynomial Equations and Factoring - 7.7 - Factoring Special Products - Exercises - Page 401: 10

Answer

$240$.

Work Step by Step

The given polynomial is $= 19^2-11^2$ Use difference of two square pattern $a^2-b^2=(a+b)(a-b)$. We have $a=19$ and $b=11$. $= (19+11)(19-11)$ Simplify. $= (30)(8)$ Multiply. $= 240$ Hence, the solution is $240$.
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