(2/(x^2))-(5/x)+(2/1)=0

解答

(\frac{2}{x ^{2}}) - (\frac{5}{x}) + (\frac{2}{1}) = 0

x = 2, x = \frac{1}{2}

十进制

x = 2, x = 0.5

求解步骤

(\frac{2}{x ^{2}}) - (\frac{5}{x}) + (\frac{2}{1}) = 0

乘以最小公倍数

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

解

2 - 5 x + 2 x^{2} = 0 : x = 2, x = \frac{1}{2}

x = 2, x = \frac{1}{2}

验证解

找到无定义的点（奇点）:

x = 0

将不在定义域的点与解相综合:

x = 2, x = \frac{1}{2}

so l v e f or x, \frac{3}{x} - \frac{1}{m} = \frac{2}{m}

\frac{4.5 x - 1}{3 x} = 12

\frac{4 z ^{2} + 6}{z ^{2}} = 11

\frac{( 4 x + 17 )}{18} - \frac{( 13 x - 2 )}{( 17 x - 32 )} + \frac{x}{3} = \frac{( 7 x )}{12} - \frac{( x + 16 )}{36}

\frac{1}{2 ( x + 5 ) ^{2} + 2} = 42.5