document.write( "Question 112199: please show me how to do this.
\n" ); document.write( " Simplify the rational expression:
\n" ); document.write( "x2 – 3x – 10
\n" ); document.write( " x2 – x – 20
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Algebra.Com's Answer #81844 by jim_thompson5910(35256) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28x%5E2-3x-10%29%2F%28x%5E2-x-20%29\"$ Start with the given expression \r
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\n" ); document.write( "\n" ); document.write( " $\"%28%28x-5%29%28x%2B2%29%29%2F%28x%5E2-x-20%29\"$ Factor $\"x%5E2-3x-10\"$ to get $\"%28x-5%29%28x%2B2%29\"$ (note: if you need help with factoring, check out this solver)\r
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\n" ); document.write( "\n" ); document.write( " $\"%28%28x-5%29%28x%2B2%29%29%2F%28%28x-5%29%28x%2B4%29%29\"$ Factor $\"x%5E2-x-20\"$ to get $\"%28x-5%29%28x%2B4%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%28cross%28%28x-5%29%29%28x%2B2%29%29%2F%28cross%28%28x-5%29%29%28x%2B4%29%29\"$ Cancel like terms\r
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\n" ); document.write( "\n" ); document.write( " $\"%28x%2B2%29%2F%28x%2B4%29\"$ Simplify\r
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\n" ); document.write( "\n" ); document.write( "So $\"%28x%5E2-3x-10%29%2F%28x%5E2-x-20%29\"$ simplifies to $\"%28x%2B2%29%2F%28x%2B4%29\"$ \n" ); document.write( "

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