Автор - sallyfil

Помогите пожалуйста!!!
(m²-mn+n²) (a-b) ;
(d²+6dp-2p²) (p-d) ;
(y²+5y+2)(y-6)​

Ответ

Автор - KristinaLake

am^2-bm^2-amn+an^3-bn^2

Ответ

Автор - ZLOYTIGROVSKIY

(m {}^{2}  - mn + n {}^{2} ) times (a - b) =  \  = am {}^{2}  - bm {}^{2}  - amn - mn times ( - b) + an {}^{2}  - bn =  \  = am {}^{2}  - bm {}^{2}  - amn + bmn + an {}^{2}  - bn {}^{2}  \  \  \ 2)(d {}^{2}  + 6dp - 2p {}^{2} ) times (p - d) =  \  = d {}^{2} p - d {}^{3}  + 6dp {}^{2}  - 6d {}^{2} p - 2p {}^{3}  + 2dp {}^{2}  =  \  =  - 5d {}^{2} p - d {}^{3}  + 8dp {}^{2}  - 2p {}^{3}  \  \  \ 3)(y {}^{2}  + 5y + 2) times (y - 6) =  \  = y {}^{3}  - 6y {}^{2}  + 5y - 30y + 2y - 12 =  \  = y {}^{3}  - y {}^{2}  - 28y - 12

~•~•~•ZLOY_TIGROVSKIY~•~•~•

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