Помогите сделать квадратное уравнение 1) (2x-1)×(x+3) 2) (3-x)×(2x+1) - №24535217

Помогите сделать квадратное уравнение
1) (2x-1)×(x+3)
2) (3-x)×(2x+1)
- Предмет:
  Алгебра
- Автор:
  pope97
- 5 лет назад

Ответы 1

1) 2x^2+6x-x-3=02x^2+5x-3=0D=25-4*2*(-3)=25+24=49x1=(-5-7)/4=-3x2=(-5+7)/4=2/4=1/2=0.52)6x+3-2x^2-x=0-2x^2+5x+3=0D=25-4*(-2)*3=25+24=49x1=(-5-7)/-4=3x2=(-5+7)/-4=-2/4=-1/2=-0.5
- Автор:
  susie qxg0g
- 5 лет назад
- 0
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