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y in (-oo:+oo)
y^3*((36*y^7-(24*y^5))/4) = 0
y^3*((36*y^7-24*y^5)/4) = 0
(y^3*(36*y^7-24*y^5))/4 = 0
36*y^7-24*y^5 = 0
12*y^5*(3*y^2-2) = 0
3*y^2 = 2 // : 3
y^2 = 2/3
y^2 = 2/3 // ^ 1/2
abs(y) = (2/3)^(1/2)
y = (2/3)^(1/2) or y = -(2/3)^(1/2)
12*y^5*(y-(2/3)^(1/2))*(y+(2/3)^(1/2)) = 0
(12*y^3*y^5*(y-(2/3)^(1/2))*(y+(2/3)^(1/2)))/4 = 0
( 12*y^5 )
12*y^5 = 0 // : 12
y^5 = 0
y = 0
( y+(2/3)^(1/2) )
y+(2/3)^(1/2) = 0 // - (2/3)^(1/2)
y = -(2/3)^(1/2)
( y-(2/3)^(1/2) )
y-(2/3)^(1/2) = 0 // + (2/3)^(1/2)
y = (2/3)^(1/2)
( y^3 )
1*y^3 = 0 // : 1
y^3 = 0
y = 0
y in { 0, -(2/3)^(1/2), (2/3)^(1/2), 0 }
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