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moistat1970
@moistat1970
August 2022
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Чему равно произведение корней уравнения 3х^2-19x+21=0
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яВиктория
D=361 - 4*3*21 = 361 - 252 = 109
х1=(19 - V109):6 приблизительно = 1,4 V - знак корня
х2=(19 + V109):6 приблизительно = 4,9
х1 * х2 = 1,4 * 4,9 = 6,86
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Answers & Comments
х1=(19 - V109):6 приблизительно = 1,4 V - знак корня
х2=(19 + V109):6 приблизительно = 4,9
х1 * х2 = 1,4 * 4,9 = 6,86