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(3m)-2 = 1/9m2

 Sep 27, 2017
 #1
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(3m)-2  =  (3)-2·(m-2)  =  (1/9)(1/m2)  =  1/(9m2)

So, if you put parentheses around the '9m2', your answer is correct; if you don't use the parentheses, your answer is incorrect.

 Sep 28, 2017
 #2
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+1

thanks smiley

 Sep 28, 2017
edited by Guest  Sep 28, 2017

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