find the roots of x-1/x-2+x-3/x-4=3
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x-1/x-2 + x-3/x-4 = 3
= (x-1)(x-4) + (x-3)(x-2) / (x-2)(x-4)
= x²-5x+4 + x²-5x +6 / (x-2)(x-4)
= 2x²-10x+10 / (x-2)(x-4)
= 2(x²-5x+5) / (x-2)(x-4)
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