What is the domain of (3x+21)/(6x+6) ?

The domain of (3x+21)/(6x+6) is x -1

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domain of (3x+21)/(6x+6)

domain

\frac{3 x + 21}{6 x + 6}

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

f (x) = \frac{4 x - 5}{5 x - 20}

f (x) = \frac{t - 5}{2 t - 16}

4 x^{2} - 1

f (x) = 1 - x + 3

f (x) = \frac{e ^{x} - e ^{- x}}{2}

What is the domain of (3x+21)/(6x+6) ?
The domain of (3x+21)/(6x+6) is x<-1\lor x>-1