What is the domain of f(x)=2x^2-20x+90 ?

The domain of f(x)=2x^2-20x+90 is -infinity <x<infinity

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domain of f(x)=2x^2-20x+90

domain

f (x) = 2 x^{2} - 20 x + 90

- \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) = lo g_{10} (3 x)

f (x) = x^{2} + 2 x + 9

100 - (x + 5)^{2}

f (x) = x^{2} + 10 x + 24

4 x - 4

What is the domain of f(x)=2x^2-20x+90 ?
The domain of f(x)=2x^2-20x+90 is -infinity <x<infinity