(x+1/x-1) - (x-1/x+1) = 5/6
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(x+1/x-1)-(x-1/x+1)=5/6.
(x+1)(x+1)-(x-1)(x-1)/x²-1²=5/6. (Because (a-b)(a+b)=a²-b²).
(x+1)²-(x-1)²/x²-1=5/6.
((x)²+2(x)(1)+(1)²)-((x)²-2(x)(1)+(1)²)/x²-1=5/6. (Because (a+b)²=a²+2ab+b² & (a-b)²=a²-2ab+b²).
x²+2x+1-(x²-2x+1)/x²-1=5/6.
x²+2x+1-x²+2x-1/x²-1=5/6. (Because -×-=+ & -×+=-).
2x+2x/x²-1=5/6.
4x/x²-1=5/6.
4x=5/6(x²-1).
4x=5/6x²-5/6.
5/6x²-4x-5/6=0.
5x²-24x-5=0.
a=5, b=-24 & c=-5.
I think this is your answer.
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