Найдите корни уравнения x2+3x=10. В ответе запишите сумму корней - №11938848

Найдите корни уравнения x2+3x=10. В ответе запишите сумму корней
- Предмет:
  Алгебра
- Автор:
  brian868
- 5 лет назад

Ответы 1

х² + 3х - 10 = 0D = 3² - 4 * 1 * (-10) = 49 = 7²х1 = (-3-7)/2 = -5х2 = (-3+7)/2 = 2-5 + 2 = - 3ответ. -3
- Автор:
  victoriatownsend
- 5 лет назад
- 0
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