(y^7)/(y+2)*(8y+16)/(y^9)

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Solution for (y^7)/(y+2)*(8y+16)/(y^9) equation: 


D( y )

y^9 = 0

y+2 = 0

y^9 = 0

y^9 = 0

1*y^9 = 0 // : 1

y^9 = 0

y = 0

y+2 = 0

y+2 = 0

y+2 = 0 // - 2

y = -2

y in (-oo:-2) U (-2:0) U (0:+oo)

(((y^7)/(y+2))*(8*y+16))/(y^9) = 0

(y^7*(8*y+16))/(y^9*(y+2)) = 0

( 8*y+16 )

8*y+16 = 0 // - 16

8*y = -16 // : 8

y = -16/8

y = -2

( y^7 )

1*y^7 = 0 // : 1

y^7 = 0

y = 0

y in { -2} 

y in { 0} 

y belongs to the empty set

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