document.write( "Question 522507: Simplify Rational Fraction:\r
\n" ); document.write( "\n" ); document.write( "x^2-9x+20 / 20-5x\r
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\n" ); document.write( "\n" ); document.write( "4x^3 + 4 / x^2 - 1
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Algebra.Com's Answer #346892 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Simplify:
\n" ); document.write( "1) \"%28x%5E2-9x%2B20%29%2F%2820-5x%29\" Factor the numerator and the denominator.
\n" ); document.write( "\"%28x-4%29%28x-5%29%2F5%284-x%29\" Rewrite the denominator.
\n" ); document.write( "\"cross%28%28x-4%29%29%28x-5%29%2F%28-5%2Across%28%28x-4%29%29%29\" Cancel the indicated factors to get:
\n" ); document.write( "\"%28x-5%29%2F-5\"
\n" ); document.write( "2) \"%284x%5E3%2B4%29%2F%28x%5E2-1%29\" Factor the numerator and the denominator.
\n" ); document.write( "\"4%28x%5E3%2B1%29%2F%28%28x-1%29%28x%2B1%29%29\" Factor the sum of cubes in the numerator.
\n" ); document.write( "\"4%2Across%28%28x%2B1%29%29%28x%5E2-x%2B1%29%2F%28x-1%29cross%28%28x%2B1%29%29\" Cancel the indicated factors.
\n" ); document.write( "\"4%28x%5E2-x%2B1%29%2F%28x-1%29\"
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