#### Answer

25$m^{2}$-20m+4

#### 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

Published by
Prentice Hall

ISBN 10:
0133281140

ISBN 13:
978-0-13328-114-9

25$m^{2}$-20m+4

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