(5a)/(a+2)=0

解答

\frac{5 a}{a + 2} = 0

a = 0

求解步骤

\frac{5 a}{a + 2} = 0

\frac{f ( x )}{g ( x )} = 0 \Rightarrow f (x) = 0

5 a = 0

两边除以

5

a = 0

验证解

找到无定义的点（奇点）:

a = - 2

将不在定义域的点与解相综合:

a = 0

0.02 = \frac{0.5}{x}

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

\frac{x ^{2} - 6 x + 5}{x ^{2} - 2} = 3

\frac{3}{x - 2} + \frac{2}{x} = \frac{1}{x - 2}

\frac{1}{2 x} + \frac{6 x - 9}{3 x} = \frac{2}{x}