Алгебра
Формулы сокращенного умножения (кубы)
7 класс
3 уравнения
Anna080811
1
21.04.2021 22:35
0
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a^2-b^2=(a-b)(a+b)
(a+-b)^2=a^2+-2ab+b^2
(a-b)^3=(a-b)(a^2+ab+b^2)