Mathematics
Senior High
Resolved
4mの2乗が次の式になって、なんでなくなったのか教えて欲しいです。(><)
(r (m?-2m-1)2
2
(m-2m-1) (m°-2m-1)
ニ m4- (4m+2)m°+ 4m°+4m+l
こm4-4m3+2m+4m+4mtl
=mt-4m?+2m+ 4m+|
2
3
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分かりました、、!
ありがとうございます😌