SOLUTION: Please help us to simplify the expression and leave anser with only positive exponents: {{{(p^(-3)+q^(-2))/q^(-1)}}}

Question 538688: Please help us to simplify the expression and leave anser with only
positive exponents:

Answer by AnlytcPhil(1806) (Show Source): You can put this solution on YOUR website!

Make two fractions:

 + 

Get all the negative exponents positive by

using this rule:  = 

[That is, an exponential with a negative exponent 
which is a numerator (denominator) or a factor 
thereof may be brought from the numerator(denominator) 
to the denominator (numerator), and the sign of the
exponent changed to positive.]

 + 
  
In the second fraction, we can divide top and bottom by q:

 + 

We can erase the 1 exponents

 + 

That is one form of the answer.  Or you can combine the
fractions over the LCD of p�q



Edwin

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