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受欢迎的代数 >

x^2-1/2 x=0

解答

x^{2} - \frac{1}{2} x = 0

解答

x = \frac{1}{2}, x = 0

+1

十进制

x = 0.5, x = 0

求解步骤

x^{2} - \frac{1}{2} x = 0

在两边乘以

2

2 x^{2} - x = 0

使用求根公式求解

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

(- 1)^{2} - 4 \cdot 2 \cdot 0 = 1

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

将解分隔开

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

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

x = \frac{- ( - 1 ) - 1}{2 \cdot 2} : 0

二次方程组的解是:

x = \frac{1}{2}, x = 0

作图

流行的例子

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