помогите) (х-4)^2-x^2=0

помогите) (х-4)^2-x^2=0
- Предмет:
  Алгебра
- Автор:
  mccarthy
- 5 лет назад

Ответы 2

(х-4)^2-x^2=0x^2 -8x + 16 - x^2 = 0-8x + 16 = 0-8x=-16x= -16/-8= 16/8=2
- Автор:
  amourorng
- 5 лет назад
- 0
(х-4)²-x²=0Используем правило (a-b)²=a²-2ab+b²x²-8x+16-x²=0Убираем иксы(зачеркиваем подобные)-8x+16=0-8x+16-16=0-16При вычитании 0 из любого числа, ответ изменяться не будет.-8x=-16x=-16:-8x=16:8x=2Ответ x=2
- Автор:
  phoenixmccullough
- 5 лет назад
- 0
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помогите) (х-4)^2-x^2=0

Ответы 2

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