Question Number 200717 by hardmath last updated on 22/Nov/23
$$\mathrm{2}. \\ $$$${A}\:=\:\mathrm{12}\:−\:\mathrm{2}{x} \\ $$$${B}\:=\:\mathrm{3}\:+\:\mathrm{2}{x} \\ $$$$\left({A}\centerdot{B}\right)_{\boldsymbol{{min}}} \:=\:? \\ $$
Answered by AST last updated on 22/Nov/23
$${A}\centerdot{B}=\mathrm{36}+\mathrm{18}{x}−\mathrm{4}{x}^{\mathrm{2}} \Rightarrow{no}\:{min} \\ $$