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9h^-2*5h^10

Please explain your answer. Do not put 9h and 5h in parenthesis.

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Vivian L. | Microsoft Word/Excel/Outlook, essay composition, math; I LOVE TO TEACHMicrosoft Word/Excel/Outlook, essay comp...
3.0 3.0 (1 lesson ratings) (1)
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Hi Andrew;
9h-2*5h10
First, let's consider h-2 * h10
-2+10=8
This is h8
9h8*5
45h8
Alex V. | College doesn't make you smart. College teaches you to be resourceful.College doesn't make you smart. College ...
4.8 4.8 (73 lesson ratings) (73)
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The Ruie is when you have two similar numbers (same base), each raised to a power, the product of these (base) numbers raised to their power is the base raised to the sum of e powers.
 
i.e.  (ax)*(ay) = a(x+y)