Question Number 125107 by peter frank last updated on 08/Dec/20
Commented by mr W last updated on 08/Dec/20
$${where}\:{did}\:{you}\:{get}\:{this}\:{question}? \\ $$$${it}\:{is}\:{wrong}.\:{for}\:{example}\:{m}=\mathrm{1},\:{n}=\mathrm{2}, \\ $$$${x}^{\mathrm{2}} +\mathrm{2}{x}+\mathrm{2}=\mathrm{0}\:{has}\:{no}\:{real}\:{roots}! \\ $$