2乗の係数でくくると、
-1/5(x^2-300x)-3000
=-1/5｛(x-150)^2-22500｝-3000
=-1/5(x-150)^2+4500-3000
=-1/5(x-150)^2+1500
回答
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こちらの質問も見ています😉
2乗の係数でくくると、
-1/5(x^2-300x)-3000
=-1/5｛(x-150)^2-22500｝-3000
=-1/5(x-150)^2+4500-3000
=-1/5(x-150)^2+1500
この質問を見ている人は
こちらの質問も見ています😉
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