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+144=0

解答

x^{2} - 12 x + 144 = 0

解答

x = 6 + 63 i, x = 6 - 63 i

求解步骤

x^{2} - 12 x + 144 = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 12 ) \pm ( - 12 ) ^{2} - 4 \cdot 1 \cdot 144}{2 \cdot 1}

化简

(- 12)^{2} - 4 \cdot 1 \cdot 144 : 123 i

x_{1, 2} = \frac{- ( - 12 ) \pm 12 3 i}{2 \cdot 1}

将解分隔开

x_{1} = \frac{- ( - 12 ) + 12 3 i}{2 \cdot 1}, x_{2} = \frac{- ( - 12 ) - 12 3 i}{2 \cdot 1}

x = \frac{- ( - 12 ) + 12 3 i}{2 \cdot 1} : 6 + 63 i

x = \frac{- ( - 12 ) - 12 3 i}{2 \cdot 1} : 6 - 63 i

二次方程组的解是:

x = 6 + 63 i, x = 6 - 63 i

作图

流行的例子

2 = x^{2}

(x - 9)^{2} = - 25

(2y+5)(2y-5)+10y=0

(2 y + 5) (2 y - 5) + 10 y = 0

2 x^{2} + 5 x = 6 x + 15

solvefor x,2x^2+4xy-x-2y=0

so l v e f or x, 2 x^{2} + 4 x y - x - 2 y = 0