18/14=b+2/b

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Solution for 18/14=b+2/b equation: 


D( b )

b = 0

b = 0

b = 0

b in (-oo:0) U (0:+oo)

18/14 = b+2/b // - b+2/b

18/14-b-(2/b) = 0

18/14-b-2*b^-1 = 0

9/7*b^0-1*b^1-2*b^-1 = 0

(9/7*b^1-1*b^2-2*b^0)/(b^1) = 0 // * b^2

b^1*(9/7*b^1-1*b^2-2*b^0) = 0

b^1

(9/7)*b-b^2-2 = 0

(9/7)*b-b^2-2 = 0

DELTA = (9/7)^2-(-2*(-1)*4)

DELTA = -311/49

DELTA < 0

b in { } 

b belongs to the empty set

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