What is (-9+x^2)/(x^2+2x-15) ?

The solution to (-9+x^2)/(x^2+2x-15) is (x+3)/(x+5)

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simplify (-9+x^2)/(x^2+2x-15)

simplify

\frac{- 9 + x ^{2}}{x ^{2} + 2 x - 15}

\frac{x + 3}{x + 5}

Solution steps

\frac{- 9 + x ^{2}}{x ^{2} + 2 x - 15}

Factor

- 9 + x^{2} : (x + 3) (x - 3)

= \frac{( x + 3 ) ( x - 3 )}{x ^{2} + 2 x - 15}

Factor

x^{2} + 2 x - 15 : (x - 3) (x + 5)

= \frac{( x + 3 ) ( x - 3 )}{( x - 3 ) ( x + 5 )}

Cancel the common factor:

x - 3

= \frac{x + 3}{x + 5}

(3 x + 2 y)^{6}

5 4 2^{2}

\frac{3}{7} \div \frac{9}{14}

x (2 x + 3)

(x^{2}) (x^{4})

What is (-9+x^2)/(x^2+2x-15) ?
The solution to (-9+x^2)/(x^2+2x-15) is (x+3)/(x+5)