Предмет: Алгебра, автор: romashka881

(в²+2в)²-в²(в-1)(в+1)+2в(3-2в²) СОС!ДАЮ 20Б!
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Ответы

Автор ответа: nKrynka
8
(в²+2в)²-в²(в-1)(в+1)+2в(3-2в²) =b⁴ + 4b³ + 4b² - b²(b² - 1) + 6b - 4b³ = b⁴ + 4b³ + 4b² - b⁴ + b² + 6b - 4b³ = 
= 5b² + 6b

romashka881: ты не могла бы мне помочь ещё кое что решить!
romashka881: спасибо
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