Chemistry
Senior High
Resolved
Y＝2X^2+16X+21から緑で線を引いたとこの式にするまでの工程がわかりません。
ッー2x*二16x21 =人59縛旧
(の座標は (一4, 一11)
陽二EE00昌0作70 65/昌語
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