What is the domain of x^2+2x ?

The domain of x^2+2x is -infinity <x<infinity

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domain of x^2+2x

domain

x^{2} + 2 x

- \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

\frac{2 x + 6}{- 6 x + 3}

f (x) = lo g_{10} (9 - x)

\frac{1}{x ^{2} - 25}

x^{4} + 4

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