(x^2 + 7x + 13)^2 - (x^2 - 3x + 7)^2 Как упростить - №10709206

(x^2 + 7x + 13)^2 - (x^2 - 3x + 7)^2
Как упростить
- Предмет:
  Математика
- Автор:
  echo
- 6 лет назад

Ответы 1

По формуле разности квадратов:(x²+7x+13-x²+3x-7)(x²+7x+13+x²-3x+7)==(10x+6)(2x²+4x+20)=20x³+40x²+200x+12x²+24x+120==20x³+52x²+224x+120
- Автор:
  oscar95
- 6 лет назад
- 0
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