1 = <span><span>∆1/</span>∆</span> = <span>98/-102</span> = -<span>49/51</span>
x2 = <span><span>∆2/</span>∆</span> = <span>-198/-102</span> = <span>33/17</span>
x3 = <span><span>∆3/</span>∆</span> = <span>174/-102</span> = -<span>29/<span>17Cсылка там расписано полностью </span></span>http://ru.onlinemschool.com/math/assistance/equation/kramer/