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人気のある代数 >

9x^2-3x+a^2=0

解

9 x^{2} - 3 x + a^{2} = 0

解

x = \frac{1 + - 4 a ^{2} + 1}{6}, x = \frac{1 - - 4 a ^{2} + 1}{6}

解答ステップ

9 x^{2} - 3 x + a^{2} = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 3 ) \pm ( - 3 ) ^{2} - 4 \cdot 9 a ^{2}}{2 \cdot 9}

簡素化

(- 3)^{2} - 4 \cdot 9 a^{2} : 3 1 - 4 a^{2}

x_{1, 2} = \frac{- ( - 3 ) \pm 3 1 - 4 a ^{2}}{2 \cdot 9}

解を分離する

x_{1} = \frac{- ( - 3 ) + 3 1 - 4 a ^{2}}{2 \cdot 9}, x_{2} = \frac{- ( - 3 ) - 3 1 - 4 a ^{2}}{2 \cdot 9}

x = \frac{- ( - 3 ) + 3 1 - 4 a ^{2}}{2 \cdot 9} : \frac{1 + - 4 a ^{2} + 1}{6}

x = \frac{- ( - 3 ) - 3 1 - 4 a ^{2}}{2 \cdot 9} : \frac{1 - - 4 a ^{2} + 1}{6}

二次equationの解:

x = \frac{1 + - 4 a ^{2} + 1}{6}, x = \frac{1 - - 4 a ^{2} + 1}{6}

グラフ

人気の例

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