7/y+5+8/3y

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Solution for 7/y+5+8/3y equation: 


D( y )

y = 0

y = 0

y = 0

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

(8/3)*y+7/y+5 = 0

8/3*y^1+7*y^-1+5*y^0 = 0

(8/3*y^2+5*y^1+7*y^0)/(y^1) = 0 // * y^2

y^1*(8/3*y^2+5*y^1+7*y^0) = 0

y^1

(8/3)*y^2+5*y+7 = 0

(8/3)*y^2+5*y+7 = 0

DELTA = 5^2-(4*7*(8/3))

DELTA = -149/3

DELTA < 0

y in { } 

y belongs to the empty set

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