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

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

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

domain

x < - 2 or - 2 < x < 4 or x > 4

Interval Notation

(- \infty, - 2) \cup (- 2, 4) \cup (4, \infty)

Solution steps

Find undefined (singularity) points:

x = 4, x = - 2

The function domain

x < - 2 or - 2 < x < 4 or x > 4

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