What is the domain of f(x)=(2x^2-x-9)/(x^2+1) ?

The domain of f(x)=(2x^2-x-9)/(x^2+1) is -infinity <x<infinity

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domain of f(x)=(2x^2-x-9)/(x^2+1)

domain

f (x) = \frac{2 x ^{2} - x - 9}{x ^{2} + 1}

- \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

1.6 x + 7.25

f (x) = \frac{2 x + 1}{x ^{2} + x - 2}

f (x) = \frac{1}{2 x - 3}

6 y - 8 x = 54

35 L \times (- 8)

What is the domain of f(x)=(2x^2-x-9)/(x^2+1) ?
The domain of f(x)=(2x^2-x-9)/(x^2+1) is -infinity <x<infinity