What is the domain of f(x)=x^4+4x^3-2x^2-12x+9 ?

The domain of f(x)=x^4+4x^3-2x^2-12x+9 is -infinity <x<infinity

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domain of f(x)=x^4+4x^3-2x^2-12x+9

domain

f (x) = x^{4} + 4 x^{3} - 2 x^{2} - 12 x + 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

f (x) = \frac{7}{3 x + 11}

\frac{5 - x}{- 5 x}

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

\frac{1}{64} 4^{5 x - 23}

f (x) = arctan (e^{x})

What is the domain of f(x)=x^4+4x^3-2x^2-12x+9 ?
The domain of f(x)=x^4+4x^3-2x^2-12x+9 is -infinity <x<infinity