Найдите корень уравнение (все это под корнем )16 - 4х =2

Найдите корень уравнение (все это под корнем )16 - 4х =2
- Предмет:
  Алгебра
- Автор:
  abigailgarcia
- 6 лет назад

Ответы 1

$\sqrt{16-4x}=2$ ОДЗ: $16-4x\geq 0$ откуда $x \leq 4$ (подкоренное выражение принимает неотрицательное значение)Возводим обе части уравнения в квадрат, имеем , что $16-4x=4\\ -4x=-12\\ x=3$ Проверка. $\sqrt{16-4\cdot 3} =2\\ 2=2$ ОТВЕТ: х=3.
- Автор:
  emilianobecker
- 6 лет назад
- 0
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Найдите корень уравнение (все это под корнем )16 - 4х =2

Ответы 1

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