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Uploaded by kikorin2008 on Oct 25, 2008
なかよし学園最新ソングは2乗の歌!みんなで覚えて歌ってねー(≧∀≦)ノ
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(10+a)^2=100+2a+a^2
にa=1,2,3,4を入れて
11^2=121
12^2=144
13^2=169
14^2=196
sagutimorihito 1 year ago
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(10+a)^2=100+2a+a^2
にa=1,2,3,4を入れて
11^2=121
12^2=144
13^2=169
14^2=196
sagutimorihito 1 year ago