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w^3*((16*x^7-(3*x^5))/4) = 0
w^3*((16*x^7-3*x^5)/4) = 0
(w^3*(16*x^7-3*x^5))/4 = 0
16*x^7-3*x^5 = 0
x^5*(16*x^2-3) = 0
16*x^2 = 3 // : 16
x^2 = 3/16
x^2 = 3/16 // ^ 1/2
abs(x) = (3/16)^(1/2)
x = (3/16)^(1/2) or x = -(3/16)^(1/2)
x^5*(x-(3/16)^(1/2))*(x+(3/16)^(1/2)) = 0
(w^3*x^5*(x-(3/16)^(1/2))*(x+(3/16)^(1/2)))/4 = 0
( x+(3/16)^(1/2) )
x+(3/16)^(1/2) = 0 // - (3/16)^(1/2)
x = -(3/16)^(1/2)
( x-(3/16)^(1/2) )
x-(3/16)^(1/2) = 0 // + (3/16)^(1/2)
x = (3/16)^(1/2)
( x^5 )
1*x^5 = 0 // : 1
x^5 = 0
x = 0
x in { -(3/16)^(1/2), (3/16)^(1/2), 0 }
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