What is the domain of (x^2-16)/(4-x) ?

The domain of (x^2-16)/(4-x) is x 4

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domain of (x^2-16)/(4-x)

domain

\frac{x ^{2} - 16}{4 - x}

x < 4 or x > 4

Interval Notation

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

Solution steps

Find undefined (singularity) points:

x = 4

The function domain

x < 4 or x > 4

(- 3, - 5), (- 1, - 7)

\frac{x - 6}{x - 7}

y = - x^{8} + 8 x + 1

f (x) = \frac{2 x}{5}

f (x) = x^{2} + 2 x - 15

What is the domain of (x^2-16)/(4-x) ?
The domain of (x^2-16)/(4-x) is x<4\lor x>4