SOLUTION: (4m)^-2= use positive exponents only

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Question 666428: (4m)^-2=
use positive exponents only
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
In general n^-a = 1/n^a.
If you don't believe this, +n%5E%28-a%29+=+n%5E%280-a%29+=+n%5E0+%2F+n%5Ea+=+1%2Fn%5Ea
So we have %284m%29%5E-2+=+1%2F%284m%29%5E2+=+1%2F%2816m%5E2%29