Find the interval in which the following function is increasing `y = x^3 - 3x` `10 - 6x - 2x^2`.

Find the intervals in which the following functions are increasing: x^3 - 3x

Find the intervals in which the following functions are strictly increasing : f(x) = 10 - 6x - 2x^2

Find the intervals in which the following functions are strictly decreasing : f(x) = 10 - 6x - 2x^2

Find the intervals in which the following functions are increasing or decreasing : 5x^3 - 15 x^2 - 120 x + 3

Find the intervals in which the following functions are strictly increasing : f(x) = -2x^3 - 9x^2 - 12x + 1

Find the intervals in which the following functions are increasing or decreasing : x^3 - 6x^2 + 9x + 15

Find the intervals in which the following function is increasing and decreasing f(x)=x^2-6x+7

Find the intervals in which the following functions are increasing or decreasing : x^3 - 9x^2 + 15 x + 11

Find the intervals in which the following functions are strictly increasing : f(x) = 6-9x-x^2

Find the intervals in which the following functions are increasing or decreasing : 2x^3 - 9x^2 + 12 x - 5