Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Section 5.6 - Special Products - Exercise Set: 35



Work Step by Step

$(4m+5n)^{2}$ Apply the formula for squaring a binomial, which is $(a+b)^{2}=a^{2}+2ab+b^{2}$ Here, $a=4m$ and $b=5n$: $(4m+5n)^{2}=(4m)^{2}+2(4m)(5n)+(5n)^{2}=16m^{2}+40mn+25n^{2}$
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