Question Number 142815 by mohammad17 last updated on 05/Jun/21
$${find}\:{all}\:{roots}\:{of}\: \\ $$$$ \\ $$$${m}^{\mathrm{8}} +\mathrm{7}{m}^{\mathrm{6}} +\mathrm{2}{m}^{\mathrm{5}} −\mathrm{12}=\mathrm{0} \\ $$
Commented by MJS_new last updated on 06/Jun/21
$$\mathrm{you}\:\mathrm{can}\:\mathrm{only}\:\mathrm{approximate} \\ $$