Find the value of `a` for which the function `(a+2)x^3-3a x^2+9a x-1` decreases montonically for all real `xdot`

Find the value of a for which the function (a+2)x^(3)-3ax^(2)+9ax-1 decreases montonically for all real x.

Find the value of a for which the function (a + 2)x^(3) - 3ax^(2) + 9ax - 1 decreases monotonically for all real x.

The values of 'a' for which the function (a+2)x^3-3ax^2+9ax-1 decreases monotonically throughout for all real x are

The values of a for which the function (a+2)x^3 - 3ax^2 + 9ax-1 decreases monotonically throughout for all real x are :-

The values of a for which the function (a+2)x^(3)-3x^(2)+9ax-1 decreases monotonically throughout for all real x are :

The values of a for which the function (a+2)x^(3)-3x^(2)+9ax-1 decreases monotonically throughout for all real x are :

Find the values of a for which the function f(x)=(a+2)x^3-3a x^2+9a x-1 decreasing for all real values of xdot

The value of a for which the function (a+2)x^(3) - 3ax^(2) + 9ax -1 decreases monotonically throughout for all real values of x , are-

Find the values ' a ' for which the function f(x)=(a+2)x^3-3a x^2+9a x-1 decreases for all real values of x .

Find the values 'a' for which the function f(x)=(a+2)x^(3)-3ax^(2)+9ax-1 decreases for all real values of x