What is the domain of ((x+9)(x-9))/(x^2+81) ?

The domain of ((x+9)(x-9))/(x^2+81) is -infinity <x<infinity

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domain of ((x+9)(x-9))/(x^2+81)

domain

\frac{( x + 9 ) ( x - 9 )}{x ^{2} + 81}

- \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, - 1), (4, - 1)

f (x) = lo g_{a} (x)

f (x) = \frac{x + 4}{x - 3}

(0, - 4), (2, 4)

x^{2} + 1

What is the domain of ((x+9)(x-9))/(x^2+81) ?
The domain of ((x+9)(x-9))/(x^2+81) is -infinity <x<infinity