What is the domain of x^4+12x^2+42 ?

The domain of x^4+12x^2+42 is -infinity <x<infinity

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domain of x^4+12x^2+42

domain

x^{4} + 12 x^{2} + 42

- \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) = \frac{2 x + 1}{x ^{2} - 1}

y = ln (x + 5)

f (x) = \frac{2}{x - 8} + 9

f (x) = \frac{1}{5 x + 1}

f (x) = lo g_{10} (x^{2} - 4 x + 4)

What is the domain of x^4+12x^2+42 ?
The domain of x^4+12x^2+42 is -infinity <x<infinity