zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的代数 >

x^2-12x+46=0

解答

x^{2} - 12 x + 46 = 0

解答

x = 6 + 10 i, x = 6 - 10 i

求解步骤

x^{2} - 12 x + 46 = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 12 ) \pm ( - 12 ) ^{2} - 4 \cdot 1 \cdot 46}{2 \cdot 1}

化简

(- 12)^{2} - 4 \cdot 1 \cdot 46 : 210 i

x_{1, 2} = \frac{- ( - 12 ) \pm 2 10 i}{2 \cdot 1}

将解分隔开

x_{1} = \frac{- ( - 12 ) + 2 10 i}{2 \cdot 1}, x_{2} = \frac{- ( - 12 ) - 2 10 i}{2 \cdot 1}

x = \frac{- ( - 12 ) + 2 10 i}{2 \cdot 1} : 6 + 10 i

x = \frac{- ( - 12 ) - 2 10 i}{2 \cdot 1} : 6 - 10 i

二次方程组的解是:

x = 6 + 10 i, x = 6 - 10 i

作图

流行的例子

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

\frac{1}{5} k (k + 4) = 0.5

w^{2} + 4 w = 0

x^{2} - 2 = 8

completesquare x^2+x-56=0

co m pl e t es q u a re x^{2} + x - 56 = 0