SOLUTION: Simplify Rational Fraction: x^2-9x+20 / 20-5x 4x^3 + 4 / x^2 - 1

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Question 522507: Simplify Rational Fraction:
x^2-9x+20 / 20-5x

4x^3 + 4 / x^2 - 1

Answer by Earlsdon(6294)   (Show Source): You can put this solution on YOUR website!
Simplify:
1) Factor the numerator and the denominator.
Rewrite the denominator.
Cancel the indicated factors to get:

2) Factor the numerator and the denominator.
Factor the sum of cubes in the numerator.
Cancel the indicated factors.

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