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

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

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

domain

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

x < - 1 or - 1 < x < 3 or x > 3

Interval Notation

(- \infty, - 1) \cup (- 1, 3) \cup (3, \infty)

Solution steps

Find undefined (singularity) points:

x = 3, x = - 1

The function domain

x < - 1 or - 1 < x < 3 or x > 3

\frac{19}{6 ( x - 5 )}

f (x) = \frac{x - 1}{x ^{2} + 10 x - 11}

y = \frac{x + 7}{x ^{3} + 3 x ^{2} + 3 x + 1}

f (x) = \frac{x + 6}{7 x + 6}

What is the domain of 3/(x^2-2x-3) ?
The domain of 3/(x^2-2x-3) is x<-1\lor-1<x<3\lor x>3