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 >

-6x^2+120x=0

解答

- 6 x^{2} + 120 x = 0

解答

x = 0, x = 20

求解步骤

- 6 x^{2} + 120 x = 0

使用求根公式求解

x_{1, 2} = \frac{- 120 \pm 12 0 ^{2} - 4 ( - 6 ) \cdot 0}{2 ( - 6 )}

12 0^{2} - 4 (- 6) \cdot 0 = 120

x_{1, 2} = \frac{- 120 \pm 120}{2 ( - 6 )}

将解分隔开

x_{1} = \frac{- 120 + 120}{2 ( - 6 )}, x_{2} = \frac{- 120 - 120}{2 ( - 6 )}

x = \frac{- 120 + 120}{2 ( - 6 )} : 0

x = \frac{- 120 - 120}{2 ( - 6 )} : 20

二次方程组的解是:

x = 0, x = 20

作图

流行的例子

72 x^{2} + 30 x - 24 = 0

x^{2} - 17 x + 6 = 0

(x - 7)^{2} = 19

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

d^2+4d+24=14d+24

d^{2} + 4 d + 24 = 14 d + 24