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 >

56x^2-x=11,5y^2+8y+1=0

解答

56 x^{2} - x = 11, 5 y^{2} + 8 y + 1 = 0

解答

x = \frac{1 + 2465}{112}, x = \frac{1 - 2465}{112}, x = \frac{1 + 2465}{112}, x = \frac{1 - 2465}{112}, y = \frac{- 4 + 11}{5} y = \frac{- 4 + 11}{5} y = - \frac{4 + 11}{5} y = - \frac{4 + 11}{5}

求解步骤

[56 x^{2} - x = 11 5 y^{2} + 8 y + 1 = 0]

解

5 y^{2} + 8 y + 1 = 0 : y = \frac{- 4 + 11}{5}, y = - \frac{4 + 11}{5}

将解

y = \frac{- 4 + 11}{5}, y = - \frac{4 + 11}{5}

代入

56 x^{2} - x = 11

对于

56 x^{2} - x = 11

，用

\frac{- 4 + 11}{5}

替代

y : x = \frac{1 + 2465}{112}, x = \frac{1 - 2465}{112}

对于

56 x^{2} - x = 11

，用

- \frac{4 + 11}{5}

替代

y : x = \frac{1 + 2465}{112}, x = \frac{1 - 2465}{112}

将解代入原方程进行验证

因而，

56 x^{2} - x = 11, 5 y^{2} + 8 y + 1 = 0

最后的解是

x = \frac{1 + 2465}{112}, x = \frac{1 - 2465}{112}, x = \frac{1 + 2465}{112}, x = \frac{1 - 2465}{112}, y = \frac{- 4 + 11}{5} y = \frac{- 4 + 11}{5} y = - \frac{4 + 11}{5} y = - \frac{4 + 11}{5}

作图

流行的例子

x+y=2,x^5+y^5=82

x + y = 2, x^{5} + y^{5} = 82

x+y-z=17,0x+z-y=130

x + y - z = 17, 0 x + z - y = 130

3x^2-3+y^2=0,2xy=0

3 x^{2} - 3 + y^{2} = 0, 2 x y = 0

1x^2+x-12=0,y^2-5y+6=0

1 x^{2} + x - 12 = 0, y^{2} - 5 y + 6 = 0

4xy-2x^2=-6,6x+3y=-6

4 x y - 2 x^{2} = - 6, 6 x + 3 y = - 6