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受欢迎的代数 >

4x^2-2x+1/4 =0

解答

4 x^{2} - 2 x + \frac{1}{4} = 0

解答

x = \frac{1}{4}

+1

十进制

x = 0.25

求解步骤

4 x^{2} - 2 x + \frac{1}{4} = 0

在两边乘以

4

16 x^{2} - 8 x + 1 = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 8 ) \pm ( - 8 ) ^{2} - 4 \cdot 16 \cdot 1}{2 \cdot 16}

(- 8)^{2} - 4 \cdot 16 \cdot 1 = 0

x_{1, 2} = \frac{- ( - 8 ) \pm 0}{2 \cdot 16}

x = \frac{- ( - 8 )}{2 \cdot 16}

\frac{- ( - 8 )}{2 \cdot 16} = \frac{1}{4}

x = \frac{1}{4}

二次方程组的解是:

x = \frac{1}{4}

作图

流行的例子

(2 x - 1) (3 x + 4) = 0

28 y + 4 = 3 y^{2}

4 x^{2} + 10 x - 13 = 5 x

6 x^{2} + 10 = 4 x

3^{2} = x^{2} + 1^{2}