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D( n )
n = 0
n = 0
n = 0
n in (-oo:0) U (0:+oo)
2/n-((2*n)/16) = 3/8 // - 3/8
2/n-((2*n)/16)-(3/8) = 0
(-1/8)*n+2/n-3/8 = 0
2*n^-1-1/8*n^1-3/8*n^0 = 0
(2*n^0-1/8*n^2-3/8*n^1)/(n^1) = 0 // * n^2
n^1*(2*n^0-1/8*n^2-3/8*n^1) = 0
n^1
(-1/8)*n^2+(-3/8)*n+2 = 0
(-1/8)*n^2+(-3/8)*n+2 = 0
DELTA = (-3/8)^2-(2*4*(-1/8))
DELTA = 73/64
DELTA > 0
n = ((73/64)^(1/2)-(-3/8))/(2*(-1/8)) or n = (-(-3/8)-(73/64)^(1/2))/(2*(-1/8))
n = -4*((73/64)^(1/2)+3/8) or n = -4*(3/8-(73/64)^(1/2))
n in { -4*((73/64)^(1/2)+3/8), -4*(3/8-(73/64)^(1/2))}
n in { -4*((73/64)^(1/2)+3/8), -4*(3/8-(73/64)^(1/2)) }
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