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人気のある代数 >

12x^2-5x+2=0

解

12 x^{2} - 5 x + 2 = 0

解

x = \frac{5}{24} + i \frac{71}{24}, x = \frac{5}{24} - i \frac{71}{24}

解答ステップ

12 x^{2} - 5 x + 2 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 5 ) \pm ( - 5 ) ^{2} - 4 \cdot 12 \cdot 2}{2 \cdot 12}

簡素化

(- 5)^{2} - 4 \cdot 12 \cdot 2 : 71 i

x_{1, 2} = \frac{- ( - 5 ) \pm 71 i}{2 \cdot 12}

解を分離する

x_{1} = \frac{- ( - 5 ) + 71 i}{2 \cdot 12}, x_{2} = \frac{- ( - 5 ) - 71 i}{2 \cdot 12}

x = \frac{- ( - 5 ) + 71 i}{2 \cdot 12} : \frac{5}{24} + i \frac{71}{24}

x = \frac{- ( - 5 ) - 71 i}{2 \cdot 12} : \frac{5}{24} - i \frac{71}{24}

二次equationの解:

x = \frac{5}{24} + i \frac{71}{24}, x = \frac{5}{24} - i \frac{71}{24}

グラフ

人気の例

80=x(x/(10)-3)-5(x/(10)-3)^2

80 = x (\frac{x}{10} - 3) - 5 (\frac{x}{10} - 3)^{2}

solvefor x,4x^2-12x+9=0

so l v e f or x, 4 x^{2} - 12 x + 9 = 0

(x-5)(x+5)=(x-1)

(x - 5) (x + 5) = (x - 1)

x^{2} + 2 x + 13 = - 8

w^{2} = - 81