中３数学 二次方程式の利用④ 動点の問題 0842
Synopsis
二次方程式を利用して解く動点の問題はわりと苦手と言う生徒が多いようですが、Xの変域に注意すればそれほど難しくは ...
![[Junior High 3] Using quadratic equations (moving points)](https://i.ytimg.com/vi/FrhMzYWEURA/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAYdtXqRiLKMhbaVbBrY6Nj23vQCg)
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