Algebra 1: Common Core (15th Edition)

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

Chapter 8 - Polynomials and Factoring - 8-4 Multiplying Soecial Cases - Practice and Problem-Solving Exercises - Page 507: 15



Work Step by Step

Formula: $(a-b)^{2}$=$a^{2}$-2ab+$b^{2}$ We substitute the values in the formula and simplify: $(5m-2)^{2}$=$(5m)^{2}$-2(5m)(-2)+$(-2)^{2}$=25$m^{2}$+20m+4
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