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受欢迎的代数 >

8/11 x^2-2/11 x=0

解答

\frac{8}{11} x^{2} - \frac{2}{11} x = 0

解答

x = \frac{1}{4}, x = 0

+1

十进制

x = 0.25, x = 0

求解步骤

\frac{8}{11} x^{2} - \frac{2}{11} x = 0

在两边乘以

11

8 x^{2} - 2 x = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 2 ) \pm ( - 2 ) ^{2} - 4 \cdot 8 \cdot 0}{2 \cdot 8}

(- 2)^{2} - 4 \cdot 8 \cdot 0 = 2

x_{1, 2} = \frac{- ( - 2 ) \pm 2}{2 \cdot 8}

将解分隔开

x_{1} = \frac{- ( - 2 ) + 2}{2 \cdot 8}, x_{2} = \frac{- ( - 2 ) - 2}{2 \cdot 8}

x = \frac{- ( - 2 ) + 2}{2 \cdot 8} : \frac{1}{4}

x = \frac{- ( - 2 ) - 2}{2 \cdot 8} : 0

二次方程组的解是:

x = \frac{1}{4}, x = 0

作图

流行的例子

5 x^{2} = - 20

\frac{x ( x - 5 )}{6} - 1 = 0

solvefor x,0=x^2+y^2

so l v e f or x, 0 = x^{2} + y^{2}

12x^2-480x+3600=0

12 x^{2} - 480 x + 3600 = 0

- 5 x^{2} - 125 = 0