二乗を完成させて解く x^2 + 6x - 1 = 0 - 二次方程式を解く

x^2 - 6x + 1 = 0

係数 9x^2 - 6x + 1

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平方完成による解き方 6x^2+x-1=0 二次方程式の解き方

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9x^2 + 6x + 1 = 0 を平方完成して解きます。

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3x^2 - 6x - 1 = 0

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Quadratic Equation: Solve: 9x^2 + 6x = -1