Question Number 12435 by Mr Chheang Chantria last updated on 22/Apr/17
$$\boldsymbol{\mathrm{Solve}}\:\boldsymbol{\mathrm{equation}} \\ $$$$\:\:\boldsymbol{{X}}_{\mathrm{4}} −\mathrm{3}\boldsymbol{{X}}_{\mathrm{2}} +\mathrm{2}=\mathrm{0} \\ $$
Commented by mrW1 last updated on 22/Apr/17
$${what}\:{do}\:{you}\:{mean}\:{with}\:\boldsymbol{{X}}_{\mathrm{4}} \:{and}\:\boldsymbol{{X}}_{\mathrm{2}} ? \\ $$$${if}\:{they}\:{are}\:{normal}\:{real}\:{numbers}, \\ $$$${the}\:{solution}\:{is} \\ $$$${X}_{\mathrm{2}} ={t}={any}\:{real}\:{number} \\ $$$${X}_{\mathrm{4}} =\mathrm{3}{t}−\mathrm{2} \\ $$