solve x+1/x-1 + x-2/x+2 =3,x≠1,-2
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Answer:
x+1/x-1 + x-2/x+2 =3
=(x+1)(x+2)+(x-2)(x-1)=3(x²+2x-x-2)
=x²+2x+x+2+x²-x-2x+2=3x²+6x-3x-6
-x²-3x+10=0
x²+3x-10=0
x²+5x-2x-10=0
(x+5)(x-2)
x=-5,2
so
x≠1,-2
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