Mathematics
Senior High
Resolved
くくるってことは分かったけど、ここの二乗がどうして消えたのか分かりません🥲
教えてください!
(1) ab(a+b)+bc(b+c)) (1) 記
む + calc+a) +2abc
= (6+c)α°+(6°+2bc+c)a
= (b+c)a°+(6+ +bc(b+c)
2
= (6+c){a°+(6+ca+bc} (S)
= (b+c)(a+b)(a+c) S=
= (a+b)(6+c)(c+a) n =
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分かりました、ありがとうございます!!