Question Number 122836 by sandy_delta last updated on 20/Nov/20
Commented by sandy_delta last updated on 20/Nov/20
$$\mathrm{please}\:\mathrm{help} \\ $$
Answered by Snail last updated on 20/Nov/20
$${As}\:{it}\:{is}\:{a}\:\mathrm{4}{th}\:{degree}\:{real}\:{polynomial}.....{then}\:{if} \\ $$$${complex}\:{roots}\:{will}\:{occur}\:{in}\:{conjugate}\:{pair} \\ $$$${That}\:{is}\:{why}\:{the}\:{other}\:{two}\:{roots}\:{will}\:{be}\left(\:{c}−{i}\right)\: \\ $$$${and}\:\left(\mathrm{2}−{id}\right) \\ $$$$ \\ $$$$ \\ $$$$\left.{ii}\right)\:{As}\:{u}\:{have}\:{got}\:\mathrm{4}\:{roots}..{now}\:{use}\:{vietas}\:{relation} \\ $$$${to}\:{evaluate}\:{c}\:{and}\:{d} \\ $$$$ \\ $$