Show that the function ` x^5 - 5 x^4 + 5 x^3 - 10` is neither maximum nor minimum at x= 0.

Show that the function: f(x) = 4x^3 - 18x^2 +27x-7 has neither maximum nor minimum.

Show that the function f(x) =x^3 +x^2 + x + 1 has neither a maximum value nor a minimum value.

Prove that the function f(x) = 2x^3 - 6x^2 + 6x + 5 has no maximum or minimum.

Show that the function f(x) = 2/3 x^3-6x^2+20x-5 has neither a maximum nor a minimum value.

Show that the function f(x)=4x^3-18 x^2+27 x-7 has neither maxima nor minima.

Show that the function f(x)=4x^3-18 x^2+27 x-7 has neither maxima nor minima.

For what values of x, the function f(x) = x^(5)-5x^(4)+5x^(3)-1 is maximum or minimum? Prove that at x = 0, the function is neither maximum nor minimum.

Show that the function f(x) = log x has neither a maximum nor a minium value.

Show that the function x^(3)- 3x^(2)+3x+1 has neither a maxima nor a minima.

Show that the function x^(3)- 3x^(2)+3x+1 has neither a maxima nor a minima.