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kseniyafedulova
@kseniyafedulova
July 2022
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Преобразуйте в многочлен: а) (7a+b)(7a-b)-(b-4a)(4a+b); б) (3k-b)(3k+b)(b²+9k²)
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koctan2013
А)49а²-b²-b²+16a²=13a²-2b²
б)(9k²-b²)(b²+9k²)=81k4-b4
Вроде так :D
1 votes
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kseniyafedulova
Спасибушки,спасли меня от очередной двойки по алгебре)
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Answers & Comments
б)(9k²-b²)(b²+9k²)=81k4-b4
Вроде так :D