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#1 2006-11-29 05:33:29

Kiran
Member
Registered: 2006-11-15
Posts: 177

simplify plz help

h^(5) r^(-7) + r^(-2) h^(3)
--------------------------------
      h^(6) r^(-4)


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#2 2006-11-29 09:10:46

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

Re: simplify plz help

I got (r^4)/h.

Now tell me how I got there.

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#3 2006-11-29 09:12:42

polylog
Member
Registered: 2006-09-28
Posts: 162

Re: simplify plz help

The key things to know are: that you can write this as a sum of two fractions, that a negative power means *1 over the number raised to the positive power*, and the rules of adding and subtracting exponents.

Here is how it works out:

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#4 2006-11-29 14:05:33

Toast
Real Member
Registered: 2006-10-08
Posts: 1,321

Re: simplify plz help

=

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