What is the domain of-2x^2+8x ?

The domain of-2x^2+8x is -infinity <x<infinity

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domain of-2x^2+8x

domain

- 2 x^{2} + 8 x

- \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 ^{2} - 6}{x}

6 x + 2 y = 4

f (x) = (\frac{1}{11} (x - 4)^{2} - \frac{6}{11})

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

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