Mathematics
Senior High
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青線の式から青丸の数になるのはどうしてですか?

(2) -2x²-4x-6=-2(x²+2x)-6 グラフ 値 =-2(x²+2x+12–1²) — 6 また、最大-2{(x+1)-12}-6_ =-2(x+1)2-4 (3) 2x²-3x+1=2(x² 32\+1
2次関数とグラフ

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