What is the domain of f(x)=x^2-18x+86 ?

The domain of f(x)=x^2-18x+86 is -infinity <x<infinity

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domain of f(x)=x^2-18x+86

domain

f (x) = x^{2} - 18 x + 86

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

90 - x^{2} + x

x^{2} + 2 x + 3 + 4

f (x) = 3 x - 4 - 4 x^{2} - 3

f (x) = 3 ln (2 x - 3) + 1

What is the domain of f(x)=x^2-18x+86 ?
The domain of f(x)=x^2-18x+86 is -infinity <x<infinity