Mathematics
Senior High
このしきの展開になる説明お願いします🙇♂️
(1--1-d+bc(b+c)
(6+c)a°+(b+c)°a+bc(b+c))
(6+c){a°+(b+c)a+bc} (S)
ニ
ニ
(htea+ん)(a+c)
=
x
2
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