#### Answer

1

#### Work Step by Step

To make the expression,
$m^2-2m$
a perfect square trinomial, we would have to add half of the coefficient of the b term squared to the expression.
($\frac{1}{2}\cdot -2)^2=(-1)^2=1$
$m^2+2m+1$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

1

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