What is the domain of (x^2-25)/(x+3) ?

The domain of (x^2-25)/(x+3) is x -3

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domain of (x^2-25)/(x+3)

domain

\frac{x ^{2} - 25}{x + 3}

x < - 3 or x > - 3

Interval Notation

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

Solution steps

Find undefined (singularity) points:

x = - 3

The function domain

x < - 3 or x > - 3

cos (x + π)

f (x) = \frac{5}{x ^{3} + 10 x ^{2} + 9 x}

f (x) = 2 (x - 3)^{2} - 3

f (x) = \frac{x ^{2} - 3}{x ^{3} - 27}

f (x, y) = \frac{x}{2} - \frac{6}{x}

What is the domain of (x^2-25)/(x+3) ?
The domain of (x^2-25)/(x+3) is x<-3\lor x>-3