f(x)=x^(2)e^(-x)" is increasing in the interval "

The function f given by f(x)=x^(3)e^(x) is increasing on the interval

The function f(x)=x^(2)+2x-5 is increasing in the interval

The function f(x) = (x (x - 2))^(2) is increasing in the interval

The function f(x) = x^2 is increasing in the interval

f(x)=(x)/(log_(x)e) is increasing on the interval ……, where x inR^(+)-{1} .

f(x) = (logx)/x is increasing in the interval

If f(x) = x- sqrt x is increasing in the interval..

the function f(x)=logx/x is increasing in the interval

Find the intervals in which f(x) = 2x^(3) - 9x^(2) - 12 x -3 is increasing and the intervals in which f(x) is decreasing.