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

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

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domain of f(x)=x^2+x+1

domain

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

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

f (x) = 4 x - 2

y = - \frac{2}{3} + 5

f (x) = 27 x^{3} - 9 x + 1

f (x) = \frac{3 x + 12}{- 12 x + 4}

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