Find the domain of the expression. -x² + x³ + 8x Do they come out as real numbers?

asked Jun 28, 2023 52.0k views

1 vote

Find the domain of the expression.
-x² + x³ + 8x
Do they come out as real numbers?

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4 votes

The domain of the expression is
$(-\infty, \infty)$ because the expression is a polynomial.

This is the same as the set of all real numbers.

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