What is the domain of f(x)=((x-3))/(x^2-9) ?

The domain of f(x)=((x-3))/(x^2-9) is x 3

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domain of f(x)=((x-3))/(x^2-9)

domain

f (x) = \frac{( x - 3 )}{x ^{2} - 9}

x < - 3 or - 3 < x < 3 or x > 3

Interval Notation

(- \infty, - 3) \cup (- 3, 3) \cup (3, \infty)

Solution steps

Find undefined (singularity) points:

x = 3, x = - 3

The function domain

x < - 3 or - 3 < x < 3 or x > 3

\frac{1}{x + 25}

5 9 - x^{2}

- \frac{2 x}{( x ^{2} - 49 ) ^{2}}

f (y) = 1 - y^{2}

What is the domain of f(x)=((x-3))/(x^2-9) ?
The domain of f(x)=((x-3))/(x^2-9) is x<-3\lor-3<x<3\lor x>3