What is the domain of x^2-7 ?

The domain of x^2-7 is -infinity <x<infinity

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domain of x^2-7

domain

x^{2} - 7

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < x < \infty

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

\frac{1}{2} 2 x - 8 - 7

f (x) = 4 - x + 1

x^{\frac{23}{11}} - x^{\frac{12}{11}}

\frac{1}{x ^{2} + 7}