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9h^-2*5h^10

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2 Answers

Hi Andrew;
9h-2*5h10
First, let's consider h-2 * h10
-2+10=8
This is h8
9h8*5
45h8
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)