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受欢迎的代数 >

2/(x-3)=-x

解答

\frac{2}{x - 3} = - x

解答

x = 1, x = 2

求解步骤

\frac{2}{x - 3} = - x

在两边乘以

x - 3

2 = - x (x - 3)

解

2 = - x (x - 3) : x = 1, x = 2

x = 1, x = 2

验证解

找到无定义的点（奇点）:

x = 3

将不在定义域的点与解相综合:

x = 1, x = 2

作图

流行的例子

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