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x in (-oo:+oo)
0 = ((50-(10*y))^3)/3-(((50*x)^2)/2) // - ((50-(10*y))^3)/3-(((50*x)^2)/2)
((50*x)^2)/2-(((50-(10*y))^3)/3)+0 = 0
((50*x)^2)/2-(((50-10*y)^3)/3) = 0
(-1*(50-10*y)^3)/3+1250*x^2 = 0
(-1*(50-10*y)^3)/3+(3*1250*x^2)/3 = 0
3*1250*x^2-1*(50-10*y)^3 = 0
3750*x^2+1000*y^3-15000*y^2+75000*y-125000 = 0
(3750*x^2+1000*y^3-15000*y^2+75000*y-125000)/3 = 0
(3750*x^2+1000*y^3-15000*y^2+75000*y-125000)/3 = 0 // * 3
3750*x^2+1000*y^3-15000*y^2+75000*y-125000 = 0
3750*x^2 = -(1000*y^3-15000*y^2+75000*y-125000) // : 3750
x^2 = (125000-(1000*y^3)-(-15000*y^2)-(75000*y))/3750
x^2 = (15000*y^2-1000*y^3-75000*y+125000)/3750 // ^ 1/2
abs(x) = ((15000*y^2-1000*y^3-75000*y+125000)^(1/2))/(25*6^(1/2))
x = ((15000*y^2-1000*y^3-75000*y+125000)^(1/2))/(25*6^(1/2)) or x = -(((15000*y^2-1000*y^3-75000*y+125000)^(1/2))/(25*6^(1/2)))
x in { ((15000*y^2-1000*y^3-75000*y+125000)^(1/2))/(25*6^(1/2)), -(((15000*y^2-1000*y^3-75000*y+125000)^(1/2))/(25*6^(1/2))) }
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