решите уравнение: (5x+8)(9-x^2)=0

решите уравнение: (5x+8)(9-x^2)=0
- Предмет:
  Алгебра
- Автор:
  aryannavillarreal
- 5 лет назад

Ответы 2

вроде бы правельное решение
- Автор:
  zaiden
- 5 лет назад
- 0
(5x+8)(9-x²)=0Если у нас при умножении ответ даёт 0, то один из множителей равен 0Соответственно составляем систему5х+8=0ИЛИ9-x²=0 х= -8/5= -1,6ИЛИх= 3ИЛИ х=-3 Ответ: х = -1,6 или x=3 или x=-3вроде правильно
- Автор:
  sean75
- 5 лет назад
- 0
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решите уравнение: (5x+8)(9-x^2)=0

Ответы 2

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