What is the domain of f(x)=2x^3 ?

The domain of f(x)=2x^3 is -infinity <x<infinity

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domain of f(x)=2x^3

domain

f (x) = 2 x^{3}

- \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

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

f (x) = \frac{9 x}{x + 9}

f (x) = 3 x^{2} - \frac{10}{x}

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

- 4

What is the domain of f(x)=2x^3 ?
The domain of f(x)=2x^3 is -infinity <x<infinity