Решите уравнение2 | x | - |x + 1

Решите уравнение
2 | x | - |x + 1 | = 2
- Предмет:
  Алгебра
- Автор:
  corbin
- 6 лет назад

Ответы 1

$2 | x | - |x + 1 | = 2$ 1) при $x<-1$ оба подмодульные выражения отрицательные, поэтому, когда раскрываем модуль, меняем знак $-2x+x+1=2\\ x=-1$ 2) при $-1 \leq x <0$ , в первом модуле число отрицательное, во втором - положительное $-2x-(x+1)=2\\ x=-1$ 3) при $x \geq 0$ в обоих модулях число положительное $2x-(x+1)=2\\ x=3$ Ответ x=-1, x=3
- Автор:
  muffinqdw4
- 6 лет назад
- 0
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Most people
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is widely accepted as payment for products. It is something people see and use
almost every day. Though money is commonplace, its forms and functions are
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Решите уравнение2 | x | - |x + 1 | = 2

Ответы 1

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Решите уравнение
2 | x | - |x + 1 | = 2