IDK how to do this and i need help

asked Oct 23, 2015 in Algebra 2 Answers by anonymous

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1 Answer

Consider the powers of m and n separately to make the problem easier.

m: add the powers -2+6=4, giving us m^4

n: add the powers 4-7=-3, giving us n^-3

Now the constants: 3*(-4)=-12

Put them all together: -12m^4n^-3 or -12m^4/n^3
answered Oct 23, 2015 by Rod Top Rated User (429,040 points)

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