Автор - annmarkina2004

Решите пожалуйста, срочно уравнение
(Х2+х-5)×(х2+х+1) =-9

Ответ

Автор - amina0595
  1. (x {}^{4} + x {}^{3} - x {}^{2} + x {}^{3} + x {}^{2}  - x - 5x {}^{2} + 5 = x {}^{4} + 2x {}^{3} - 6x - 5x {}^{2} + 5 = x {}^{4} + 2x {}^{3} - 5x {}^{2} - 6x + 5

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