What is the domain of f(x)=(x^2-4x)/(x^2-16)x=3.9 ?

The domain of f(x)=(x^2-4x)/(x^2-16)x=3.9 is -infinity <x<infinity

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domain of f(x)=(x^2-4x)/(x^2-16)x=3.9

domain

f (x) = \frac{x ^{2} - 4 x}{x ^{2} - 16} x = 3.9

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < x < \infty

2 x - 4

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

\frac{0.23 x}{x ^{2} + 25}

f (x) = sin (\frac{2 π x}{3} - 3 π)

What is the domain of f(x)=(x^2-4x)/(x^2-16)x=3.9 ?
The domain of f(x)=(x^2-4x)/(x^2-16)x=3.9 is -infinity <x<infinity