Решите уранение: х^2-х=0 р^2+15р=0 5х^2-30х=0 14х^2+18х=0

Решите уранение:
х^2-х=0
р^2+15р=0
5х^2-30х=0
14х^2+18х=0
- Предмет:
  Алгебра
- Автор:
  adelaide
- 5 лет назад

Ответы 1

х^2-х=0
вынесем общий множитель за скобки, получаем:
х(х-1)=0
произведение равно нулю, когда один из множителей равен нулю, получаем:
х(1)= 0 ; х(2) = 1,
Аналогично решаются и нижние уравнения:
р^2+15р=0
р(р+15)=0
р(1) = 0; р(2) = -15
5х^2-30х=0
5х(х-6)=0
х(1) = 0 ; х(2) = 6
14х^2+18х=0
2х(7х+9)=0
2х=0 или 7х+9=0
х(1) = 0 х(2) = -9/7=-1_2/7
- Автор:
  scottparks
- 5 лет назад
- 0
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Решите уранение: х^2-х=0 р^2+15р=0 5х^2-30х=0 14х^2+18х=0

Ответы 1

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Решите уранение:
х^2-х=0
р^2+15р=0
5х^2-30х=0
14х^2+18х=0