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

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

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domain of g(x)=(2x)/(x^2-9)

domain

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

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

Solution steps

Find undefined (singularity) points:

x = 3, x = - 3

The function domain

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

f (x) = \frac{x - 2}{2 x - 10}

f (x) = 2 x - 18

f (x) = x

2 (x + 1)^{2} - 5

x^{3} - 48 x

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