x^2=25,x^2-6=0,(x+2)2-16=0;(x+2)^2-9=0,
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x^2=25,x^2-6=0,(x+2)2-16=0;(x+2)^2-9=0,x^2=25,x^2-6=0,(x+2)2-16=0;(x+2)^2-9=0,x^2=25,x^2-6=0,(x+2)2-
x^2=25,x^2-6=0,(x+2)2-16=0;(x+2)^2-9=0,
x^2=25,x^2-6=0,(x+2)2-16=0;
(x+2)^2-9=0
,
x^2=25,x^2-6=0,(x+2)2-16=0;(x+2)^2-9=0,
x^2=25
x=±5
∴x=5或x=-5
x^2-6=0
x^2=6
x=±√6
x=√6或x=-√6
(x+2)2-16=0
(x+2)^2=16
x+1=±4
∴x+1=4 或x+1=-4
∴x=3 或x=-5
(x+2)^2-9=0
(x+2)^2=9
x+1=±3
x+1=3 或x+1=-3
∴x=2或x=-4
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x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
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