2x^2+3x-5=0 решите уравнение - Znanija.Site

2x^2+3x-5=0 решите уравнение
- Предмет:
  Алгебра
- Автор:
  mochag73t
- 5 лет назад

Ответы 1

2x²+3x-5=0D=3²-4.2.(-5)=9+40=49,√D=√49=7x1=(-3+7)/4=4/4=1x2=(-3-7)/4=-10/4=-5/2=-2,5x1=1,x2=-2,5==========
- Автор:
  logan959
- 5 лет назад
- 0
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