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人気のある代数 >

42x^2-36x+6=0

解

42 x^{2} - 36 x + 6 = 0

解

x = \frac{3 + 2}{7}, x = \frac{3 - 2}{7}

+1

十進法表記

x = 0.63060 \dots, x = 0.22654 \dots

解答ステップ

42 x^{2} - 36 x + 6 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 36 ) \pm ( - 36 ) ^{2} - 4 \cdot 42 \cdot 6}{2 \cdot 42}

(- 36)^{2} - 4 \cdot 42 \cdot 6 = 122

x_{1, 2} = \frac{- ( - 36 ) \pm 12 2}{2 \cdot 42}

解を分離する

x_{1} = \frac{- ( - 36 ) + 12 2}{2 \cdot 42}, x_{2} = \frac{- ( - 36 ) - 12 2}{2 \cdot 42}

x = \frac{- ( - 36 ) + 12 2}{2 \cdot 42} : \frac{3 + 2}{7}

x = \frac{- ( - 36 ) - 12 2}{2 \cdot 42} : \frac{3 - 2}{7}

二次equationの解:

x = \frac{3 + 2}{7}, x = \frac{3 - 2}{7}

グラフ

人気の例

solvefor r,r^2+t^2=r(t)^2

so l v e f or r, r^{2} + t^{2} = r (t)^{2}

solvefor x,4x^2-25y^2=0

so l v e f or x, 4 x^{2} - 25 y^{2} = 0

0.000003x^2-0.006x+6=0

0.000003 x^{2} - 0.006 x + 6 = 0

x^{2} + 6 x - 25 = 0

4 x^{2} + 12 x + 9 = 48