y^7/9(y^2/9-7y^11/9)

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Solution for y^7/9(y^2/9-7y^11/9) equation: 


y in (-oo:+oo)

((y^7)/9)*((y^2)/9-((7*y^11)/9)) = 0

((y^7)/9)*((-7/9)*y^11+(y^2)/9) = 0

1/9*y^7*(1/9*y^2-7/9*y^11) = 0

1/9*y^2-7/9*y^11 = 0

1/9*y^2*(1-7*y^9) = 0

-7*y^9 = -1 // : -7

y^9 = 1/7

y^9 = 1/7 // ^ 1/9

y = (1/7)^(1/9)

1/9*y^2*(y-(1/7)^(1/9)) = 0

1/9*1/9*y^2*y^7*(y-(1/7)^(1/9)) = 0

( 1/9*y^2 )

1/9*y^2 = 0 // : 1/9

y^2 = 0

y = 0

( 1/9*y^7 )

1/9*y^7 = 0 // : 1/9

y^7 = 0

y = 0

( y-(1/7)^(1/9) )

y-(1/7)^(1/9) = 0 // + (1/7)^(1/9)

y = (1/7)^(1/9)

y in { 0, 0, (1/7)^(1/9) }

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