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

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

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

domain

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

2 x^{2} - 6 x + 4 - 3 x - 5

y = \frac{1}{x - 5}

3 x^{\frac{2}{3}} - x^{2}

10 - x

x^{2} + 5 x + 6

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