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 >

solvefor x,mx^2+5x+2=0

解答

x, m x^{2} + 5 x + 2 = 0

解答

x = \frac{- 5 + 25 - 8 m}{2 m}, x = \frac{- 5 - 25 - 8 m}{2 m}; m \neq = 0

求解步骤

m x^{2} + 5 x + 2 = 0

使用求根公式求解

x_{1, 2} = \frac{- 5 \pm 5 ^{2} - 4 m \cdot 2}{2 m}

化简

5^{2} - 4 m \cdot 2 : 25 - 8 m

x_{1, 2} = \frac{- 5 \pm 25 - 8 m}{2 m}; m \neq = 0

将解分隔开

x_{1} = \frac{- 5 + 25 - 8 m}{2 m}, x_{2} = \frac{- 5 - 25 - 8 m}{2 m}

x = \frac{- 5 + 25 - 8 m}{2 m}; m \neq = 0

x = \frac{- 5 - 25 - 8 m}{2 m}; m \neq = 0

二次方程组的解是:

x = \frac{- 5 + 25 - 8 m}{2 m}, x = \frac{- 5 - 25 - 8 m}{2 m}; m \neq = 0

作图

流行的例子

4 x^{2} + 83 = - 36 x

8 x^{2} - 40 x + 32 = 0

8 x^{2} + 14 x - 9 = 6

-300=17t-4.9t^2

- 300 = 17 t - 4.9 t^{2}

3 p^{2} - 13 p + 4 = - 4