1/X-1/(X+2)=2/(X+2)*X=2/195详解,

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1/X-1/(X+2)=2/(X+2)*X=2/195 详解,

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小同学你是求什么的详解?X的值么
1/X-1/(X+2)=(X+2)/(X+2)*X-X/(X+2)*X=2/(X+2)*X=2/195
(X+2)*X=195
X²+2x-195=0
（x+15）（x-13）=0
可得X=-15或X=13

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