What is the domain of f(x)= 9/((\frac{x){x+9})} ?

The domain of f(x)= 9/((\frac{x){x+9})} is x 0

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domain of f(x)= 9/((\frac{x){x+9})}

domain

f (x) = \frac{9}{( \frac{x}{x + 9} )}

x < - 9 or - 9 < x < 0 or x > 0

Interval Notation

(- \infty, - 9) \cup (- 9, 0) \cup (0, \infty)

Solution steps

Find undefined (singularity) points:

x = 0, x = - 9

The function domain

x < - 9 or - 9 < x < 0 or x > 0

f (x) = \frac{1}{x ^{2} + 2 x - 15}

f (x) = \frac{x ^{2} + 15 x + 54}{x + 6}

f (x) = \frac{6}{- x + 3}

f (x) = 4 - 7 x^{2}

\frac{( x + 4 )}{x ^{2} - 9}

What is the domain of f(x)= 9/((\frac{x){x+9})} ?
The domain of f(x)= 9/((\frac{x){x+9})} is x<-9\lor-9<x<0\lor x>0