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

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

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domain of f(x)=(3x^2+x)/(x^2+4)

domain

f (x) = \frac{3 x ^{2} + x}{x ^{2} + 4}

- \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

11 lo g_{10} (x)

f (x) = \frac{x + 11}{x ^{2} - 121}

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

f (x) = (x + 3)^{2} + 2

f (x) = 8 - 6 - 18 x

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