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

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

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

domain

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

x < - 1 or x > - 1

Interval Notation

(- \infty, - 1) \cup (- 1, \infty)

Solution steps

Find undefined (singularity) points:

x = - 1

The function domain

x < - 1 or x > - 1

y, y > 3 x + 9

\frac{x}{x ^{2} + 7 x}

- x^{2} + 7 x

y = \frac{8 x + 5}{4 x + 2}

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

What is the domain of f(x)=(x^2+x)/(x+1) ?
The domain of f(x)=(x^2+x)/(x+1) is x<-1\lor x>-1