Simplify 10/(x+9)-(9x)/(x^2-81)

Math
Simplify the denominator.
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Rewrite as .
Since both terms are perfect squares, factor using the difference of squares formula, where and .
To write as a fraction with a common denominator, multiply by .
Simplify terms.
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Multiply and .
Combine the numerators over the common denominator.
Simplify the numerator.
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Apply the distributive property.
Multiply by .
Subtract from .
Simplify 10/(x+9)-(9x)/(x^2-81)


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