Помогите выразить x из выражения y=x^2-x - №29291904

Помогите выразить x из выражения y=x^2-x
- Предмет:
  Математика
- Автор:
  agustin
- 6 лет назад

Ответы 1

$x^2-x=y\\ x^2-2*x* \frac{1}{2} + \frac{1}{4} =y+\frac{1}{4} \\ (x-\frac{1}{2} )^2=y+\frac{1}{4} \ \Rightarrow x-\frac{1}{2} = б\ \sqrt{y+\frac{1}{4} }\\ \Rightarrow x =б\ \sqrt{y+\frac{1}{4} }+\frac{1}{2}$
- Автор:
  rocky47
- 6 лет назад
- 0
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