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J02-201-02
簡介: 可作下列公式因數分解 1.立方和公式: (a┼b)(a平方-ab┼b平方)=a立方┼b立方 2.立方差公式: (a-b)(a平方┼ab┼b平方)=a立方-b立方 3.和立方公式: (a┼b)立方=a立方┼3ab(a┼b)┼b立方4.差立方公式: (a-b)立方=a立方-3ab(a-b)-b立方 詳細資料: 1.共四種模型教具,每種尺寸:10×10×10cm 2.每種模型教具皆可供學生分解操作並可吸附於黑板,以使老師示範教學附教學手冊
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