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(e²-2e)/(e-1) = e(e-1-1)/(e-1) = e - e/(e-1)
= e - (e-1+1)/(e-1) = e-1 - 1/(e-1) = 2.30026
(e²-2e)/(e+1) = e(e+1-3)/(e+1) = e - 3e/(e+1)
= e - (3e+3-3)/(e+1) = e-3 + 3/(e+1) = 0.52511
= e - (e-1+1)/(e-1) = e-1 - 1/(e-1) = 2.30026
(e²-2e)/(e+1) = e(e+1-3)/(e+1) = e - 3e/(e+1)
= e - (3e+3-3)/(e+1) = e-3 + 3/(e+1) = 0.52511
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