Mathematics
Junior High
答えは3分のマイナス6プラスマイナスルート21です
ンプ 還証較 ーー ーー のOb衣ポOO
(4) 方程式3(ヶ十3)2ー6(ァ十3) 一4ニ 0 を解き
アビ\ 内 3 のNN NN 1
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