18x-(9/2)x^3=0

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Solution for 18x-(9/2)x^3=0 equation: 


x in (-oo:+oo)

18*x-((9/2)*x^3) = 0

(-9/2)*x^3+18*x = 0

18*x-9/2*x^3 = 0

9*x*(2-1/2*x^2) = 0

-1/2*x^2 = -2 // : -1/2

x^2 = 4

x^2 = 4 // ^ 1/2

abs(x) = 2

x = 2 or x = -2

9*x = 0

9*x = 0 // : 9

x = 0

x in { 2, -2, 0 }

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