Question Number 10477 by ABCDEFGH last updated on 14/Feb/17
$${maximum}\:{and}\:{minimum}\:{value}\:{of}\: \\ $$$$\mathrm{12}{x}^{\mathrm{5}−\mathrm{5}{x}^{\mathrm{4}_{+\mathrm{40}{x}^{\mathrm{3}_{+\mathrm{6}} } } } } \\ $$
maximum-and-minimum-value-of-12x-5-5x-4-40x-3-6-