What is the domain of (x+3)/(x^2-2x-8) ?

The domain of (x+3)/(x^2-2x-8) is x 4

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domain of (x+3)/(x^2-2x-8)

domain

\frac{x + 3}{x ^{2} - 2 x - 8}

x < - 2 or - 2 < x < 4 or x > 4

Interval Notation

(- \infty, - 2) \cup (- 2, 4) \cup (4, \infty)

Solution steps

Find undefined (singularity) points:

x = 4, x = - 2

The function domain

x < - 2 or - 2 < x < 4 or x > 4

(- 1.2) y = x + 4

x^{2} + 2 x + 8

x - 2 y = 18, (3, - 2)

y = \frac{7}{x - 5}

10 x + 25 y = 225

What is the domain of (x+3)/(x^2-2x-8) ?
The domain of (x+3)/(x^2-2x-8) is x<-2\lor-2<x<4\lor x>4