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受欢迎的代数 >

8x^2-10x-63=2,y^2+33y-17=0

解答

8 x^{2} - 10 x - 63 = 2, y^{2} + 33 y - 17 = 0

解答

x = \frac{5 + 545}{8}, x = \frac{5 - 545}{8}, x = \frac{5 + 545}{8}, x = \frac{5 - 545}{8}, y = \frac{- 33 + 1157}{2} y = \frac{- 33 + 1157}{2} y = \frac{- 33 - 1157}{2} y = \frac{- 33 - 1157}{2}

求解步骤

[8 x^{2} - 10 x - 63 = 2 y^{2} + 33 y - 17 = 0]

解

y^{2} + 33 y - 17 = 0 : y = \frac{- 33 + 1157}{2}, y = \frac{- 33 - 1157}{2}

将解

y = \frac{- 33 + 1157}{2}, y = \frac{- 33 - 1157}{2}

代入

8 x^{2} - 10 x - 63 = 2

对于

8 x^{2} - 10 x - 63 = 2

，用

\frac{- 33 + 1157}{2}

替代

y : x = \frac{5 + 545}{8}, x = \frac{5 - 545}{8}

对于

8 x^{2} - 10 x - 63 = 2

，用

\frac{- 33 - 1157}{2}

替代

y : x = \frac{5 + 545}{8}, x = \frac{5 - 545}{8}

将解代入原方程进行验证

因而，

8 x^{2} - 10 x - 63 = 2, y^{2} + 33 y - 17 = 0

最后的解是

x = \frac{5 + 545}{8}, x = \frac{5 - 545}{8}, x = \frac{5 + 545}{8}, x = \frac{5 - 545}{8}, y = \frac{- 33 + 1157}{2} y = \frac{- 33 + 1157}{2} y = \frac{- 33 - 1157}{2} y = \frac{- 33 - 1157}{2}

作图

流行的例子

(x)2x-y+1=3,x+7=-2y

(x) 2 x - y + 1 = 3, x + 7 = - 2 y

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

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

x-y=5,x^2+y^2=13

x - y = 5, x^{2} + y^{2} = 13

2x+y=5,x^2+y^2=3

2 x + y = 5, x^{2} + y^{2} = 3

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

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