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

The domain of f(x)=-4+x^{(-2)} is x 0

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

domain

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

x < 0 or x > 0

Interval Notation

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

Solution steps

Find undefined (singularity) points:

x = 0

The function domain

x < 0 or x > 0

f (x) = 3 x - 8 - 5 x^{2}

f (x) = ln \frac{x + 1}{x + 3}

f (x) = (9 - 2 x) (7 - 2 x) x

1 - \frac{9}{x ^{2}}

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