What is the domain of (x^2-81)/(4x-12) ?

The domain of (x^2-81)/(4x-12) is x 3

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domain of (x^2-81)/(4x-12)

domain

\frac{x ^{2} - 81}{4 x - 12}

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

f (x) = \frac{3}{x - 1}

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

f (x) = \frac{x + 5}{x + 6}

y = \frac{x - 2}{1 - x ^{2}}

f (x) = e^{x} + 6

What is the domain of (x^2-81)/(4x-12) ?
The domain of (x^2-81)/(4x-12) is x<3\lor x>3