Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 11 - Rational Expressions and Functions - 11-4 Adding and Subtracting Rational Expressions - Practice and Problem-Solving Exercises - Page 687: 23



Work Step by Step

Given : $(m+n)(m-n)$ This becomes : $m(m) - m(n) + n(m) -n(n)$ (Using distributive property) $= m^{2}-mn+mn-n^{2}$ $= m^{2}-n^{2}$
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