SOLUTION: Can you help me simplify this expression, using only positive exponents in the answer...I don't quite understand these, so if you could be detailed, I would appriciate it. {{{

Question 122901: Can you help me simplify this expression, using only positive exponents in the answer...I don't quite understand these, so if you could be detailed, I would appriciate it.

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with given expression

Flip the bases that have negative exponents. Remember and

Multiply the first fraction by . Multiply the second fraction by .

Multiply the fractions

Combine the fractions in the numerator

Multiply the first fraction by . Multiply the second fraction by .

Multiply the fractions

Combine the fractions in the denominator

Multiply the first fraction by the reciprocal of the second fraction

Factor to get . Factor (by using the difference of squares formula) to get .

Cancel like terms

Simplify

Answer:

So simplifies to

In other words,
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