What is the domain of f(x)=-(21)/((5+x)^2) ?

The domain of f(x)=-(21)/((5+x)^2) is x -5

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domain of f(x)=-(21)/((5+x)^2)

domain

f (x) = - \frac{21}{( 5 + x ) ^{2}}

x < - 5 or x > - 5

Interval Notation

(- \infty, - 5) \cup (- 5, \infty)

Solution steps

Find undefined (singularity) points:

x = - 5

The function domain

x < - 5 or x > - 5

f (x) = 25 - x^{2} - x + 1

2 tan (\frac{π x}{2})

Y (x) - 5 = \frac{- 1}{2 ( \frac{x - 1}{2} )}

y = 2 x + 1

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

What is the domain of f(x)=-(21)/((5+x)^2) ?
The domain of f(x)=-(21)/((5+x)^2) is x<-5\lor x>-5