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3m2 n-5 * m-2 n-3

 May 26, 2017
 #1
avatar+9460 
+2

\(3\cdot m^2\cdot n^{-5}\cdot m^{-2}\cdot n^{-3} \\~\\ =3\cdot m^2 \cdot m^{-2} \cdot n^{-5}\cdot n^{-3} \\~\\ =3\cdot m^{2+-2}\cdot n^{-5 + -3} \\~\\ =3\cdot m^0\cdot n^{-8} \\~\\ =3\cdot n^{-8}\)

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 May 26, 2017
 #2
avatar+118587 
+3

And

 

\(3 \times n^{-8}\\ =3 \times \frac{1}{n^{+8}}\\ =\frac{3}{n^8}\)

 May 26, 2017

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