Mathematics
Senior High
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2段目から3段目にかけての(b+c)の二乗が外れる理由を教えてくださいお願いします。
41 (1) 与式
ニー(5+ og2+(が62二20c)g十(fc十66う
⑯+ oo"+(5上のYo十0c(⑰+の
JI22+(5 の6十6c]
の)(@十C)
(5+c)(c寺の
41 次の式を因数分解せよ。
6) g@*(ヵ十c)十6?(c十) 十c?(G十5)十2g0c
ES / 近( "の のも 1 SO
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