{3(х-2)^2+7(у+3)^3=5 {2(х-2)^2-7(у+3)^3=15 Решите пожалуйста - №20930413

{3(х-2)^2+7(у+3)^3=5
{2(х-2)^2-7(у+3)^3=15

Решите пожалуйста
- Предмет:
  Математика
- Автор:
  noseynkqz
- 6 лет назад

Ответы 1

пусть х-2=а; у+3=b, тогда3а²+7b³=52a²-7b³=155a²=202a²-7b³=15a=2; -2a=2b= -1a= -2b= -1возвращаемся к заменех-2=2. х-2= -2у+3= -1. у+3= -1х=4. х=0у= -4. у= -4
- Автор:
  jordi
- 6 лет назад
- 0
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