7y^2+9y/y

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Solution for 7y^2+9y/y equation: 


D( y )

y = 0

y = 0

y = 0

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

7*y^2+(9*y)/y = 0

7*y^2 = -9 // : 7

y^2 = -9/7

y belongs to the empty set

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