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人気のある代数 >

2x^2-11x+3=0

解

2 x^{2} - 11 x + 3 = 0

解

x = \frac{11 + 97}{4}, x = \frac{11 - 97}{4}

+1

十進法表記

x = 5.21221 \dots, x = 0.28778 \dots

解答ステップ

2 x^{2} - 11 x + 3 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 11 ) \pm ( - 11 ) ^{2} - 4 \cdot 2 \cdot 3}{2 \cdot 2}

(- 11)^{2} - 4 \cdot 2 \cdot 3 = 97

x_{1, 2} = \frac{- ( - 11 ) \pm 97}{2 \cdot 2}

解を分離する

x_{1} = \frac{- ( - 11 ) + 97}{2 \cdot 2}, x_{2} = \frac{- ( - 11 ) - 97}{2 \cdot 2}

x = \frac{- ( - 11 ) + 97}{2 \cdot 2} : \frac{11 + 97}{4}

x = \frac{- ( - 11 ) - 97}{2 \cdot 2} : \frac{11 - 97}{4}

二次equationの解:

x = \frac{11 + 97}{4}, x = \frac{11 - 97}{4}

グラフ

人気の例

(18-y)^2+y^2=180

(18 - y)^{2} + y^{2} = 180

5 x^{2} - 9 = 0

solvefor y,(16-x)y^2=x^3

so l v e f or y, (16 - x) y^{2} = x^{3}

w^{2} - 8 w + 15 = 0

solvefor t,f(6-t)=3-5(6-t)-2(6-t)^2

so l v e f or t, f (6 - t) = 3 - 5 (6 - t) - 2 (6 - t)^{2}