7b+6/b-2

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Solution for 7b+6/b-2 equation: 


D( b )

b = 0

b = 0

b = 0

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

7*b+6/b-2 = 0

7*b^1+6*b^-1-2*b^0 = 0

(7*b^2-2*b^1+6*b^0)/(b^1) = 0 // * b^2

b^1*(7*b^2-2*b^1+6*b^0) = 0

b^1

7*b^2-2*b+6 = 0

7*b^2-2*b+6 = 0

DELTA = (-2)^2-(4*6*7)

DELTA = -164

DELTA < 0

b in { } 

b belongs to the empty set

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