maxima and minima

Consider the function $$f\left( x \right) = 2{x^3} - 3{x^2}\,\,$$ in the domain $$\,\left[ { - 1,2} \right].$$ The global minimum of $$f(x)$$ is _________.

At $$x=0,$$ the function $$f\left( x \right) = {x^3} + 1$$ has