6/y+y+5/y+y=-7

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Solution for 6/y+y+5/y+y=-7 equation: 


D( y )

y = 0

y = 0

y = 0

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

y+y+6/y+5/y = -7 // + 7

y+y+6/y+5/y+7 = 0

2*y^1+11*y^-1+7*y^0 = 0

(2*y^2+7*y^1+11*y^0)/(y^1) = 0 // * y^2

y^1*(2*y^2+7*y^1+11*y^0) = 0

y^1

2*y^2+7*y+11 = 0

2*y^2+7*y+11 = 0

DELTA = 7^2-(2*4*11)

DELTA = -39

DELTA < 0

y in { } 

y belongs to the empty set

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