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Popular >

simplify (x-9)/(x^2-81)

Solution

simplify

\frac{x - 9}{x ^{2} - 81}

Solution

\frac{1}{x + 9}

Solution steps

\frac{x - 9}{x ^{2} - 81}

Factor

x^{2} - 81 : (x + 9) (x - 9)

= \frac{x - 9}{( x + 9 ) ( x - 9 )}

Cancel the common factor:

x - 9

= \frac{1}{x + 9}

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Frequently Asked Questions (FAQ)

What is (x-9)/(x^2-81) ?
The solution to (x-9)/(x^2-81) is 1/(x+9)