При каком значении переменной х квадрат двучлена х-4 больше квадрата двучлена х+9 на 195? - Znanija.Site

При каком значении переменной х квадрат двучлена х-4 больше квадрата двучлена х+9 на 195?
- Предмет:
  Алгебра
- Автор:
  Ángelesmitchell
- 5 лет назад

Ответы 1

(x-4)² - (x+9)² =195x²-8x+16-(x²+18x+81)=195x²-8x+16-x²-18x-81=195-26x=195-16+81-26x=260x= -10
- Автор:
  maggieayki
- 5 лет назад
- 0
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