7x2-4x-24=-x2 решите плиз

7x2-4x-24=-x2 решите плиз
- Предмет:
  Математика
- Автор:
  jennyaguirre
- 6 лет назад

Ответы 2

7x^2-4x-24=-x^28x^2-4x-24=0 /42x^2-x-6=0D=1+48=49=7^2x1=(1-7)/4=-1.5x2=(1+7)/4=2
- Автор:
  aidenveqa
- 6 лет назад
- 0
8x^2-4x-24=0,D/4=(b/2)^2-ac=4+192=196=14^2,x1,2= (-b/2+-кореньD/4)/a,x1=(2+14)/8=2,x2=(2-14)/8=-12/8=-3/2=-1,5.Ответ: -1,5;2.
- Автор:
  diamondu7tl
- 6 лет назад
- 0
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7x2-4x-24=-x2 решите плиз

Ответы 2

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