document.write( "Question 85465: Hi wondering if someone can solve these problems:These are multiplying and dividing rational expressions.
\n" ); document.write( "y^2-2y+1 over y^2 -1 times 2y^2 + y-1 over 5y -5\r
\n" ); document.write( "\n" ); document.write( "and another one\r
\n" ); document.write( "\n" ); document.write( "8x + 8y over x^2 divided by x^2-y^2 over x^2\r
\n" ); document.write( "\n" ); document.write( "thanks for any help you can offer
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Algebra.Com's Answer #61690 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
1) Multiply:
\n" ); document.write( " $\"%28%28y%5E2-2y%2B1%29%2F%28y%5E2-1%29%29%28%282y%5E2%2By-1%29%2F%285y-5%29%29\"$ You can often simplfy problems such as this by factoring the numerators and denominators, where possible, and canceling like-factors.
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Cancel like-factors.
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...and you are left with:
\n" ); document.write( " $\"%282y-1%29%2F5\"$ \r
\n" ); document.write( "\n" ); document.write( "2) Divide:
\n" ); document.write( " $\"%28%288x%2B8y%29%2Fx%5E2%29%2F%28%28x%5E2-y%5E2%29%2Fx%5E2%29\"$ Simplify this to:
\n" ); document.write( " $\"%28%288x%2B8y%29%2Fx%5E2%29%2A%28x%5E2%2F%28x%5E2-y%5E2%29%29\"$ Cancel the $\"x%5E2\"$ 's leaving you with:
\n" ); document.write( " $\"%288x%2B8y%29%2F%28x%5E2-y%5E2%29\"$ Now factor the numerator and denominator and cancel like-factors.
\n" ); document.write( " $\"8cross%28%28x%2By%29%29%2Fcross%28%28x%2By%29%29%28x-y%29\"$
\n" ); document.write( " $\"8%2F%28x-y%29\"$ \n" ); document.write( "

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