What is the domain of f(x)=((5-x))/((x^2-4x)) ?

The domain of f(x)=((5-x))/((x^2-4x)) is x 4

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domain of f(x)=((5-x))/((x^2-4x))

domain

f (x) = \frac{( 5 - x )}{( x ^{2} - 4 x )}

x < 0 or 0 < x < 4 or x > 4

Interval Notation

(- \infty, 0) \cup (0, 4) \cup (4, \infty)

Solution steps

Find undefined (singularity) points:

x = 4, x = 0

The function domain

x < 0 or 0 < x < 4 or x > 4

What is the domain of f(x)=((5-x))/((x^2-4x)) ?
The domain of f(x)=((5-x))/((x^2-4x)) is x<0\lor 0<x<4\lor x>4