Упростите выражение A+B+C,если А=2a^2-3аb+4b^2 , B=3a^2+4ab-b^2 , C=a^2+2ab+3b^2. - №24959986

Упростите выражение A+B+C,если А=2a^2-3аb+4b^2 , B=3a^2+4ab-b^2 , C=a^2+2ab+3b^2.
- Предмет:
  Алгебра
- Автор:
  beetlezpsv
- 5 лет назад

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