How do you find the domain and range of 2x + x^2 - x^3?

1 Answer
Jul 12, 2018

Domain: (-oo, oo) " or all Reals"
Range: (-oo, oo) " or all Reals"

Explanation:

Given: 2x + x^2 - x^3

In descending order: -x^3 + x^2 + 2x

This function has no limiting conditions such as a radical (square root) or a denominator that can't be = 0 or an exponential or logarithmic function.

That means that both the domain and range are " all Reals"