18x^3-8x/25=0

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Solution for 18x^3-8x/25=0 equation: 


x in (-oo:+oo)

18*x^3-((8*x)/25) = 0

18*x^3+(-8/25)*x = 0

18*x^3-8/25*x = 0

2*x*(9*x^2-4/25) = 0

9*x^2 = 4/25 // : 9

x^2 = 4/225

x^2 = 4/225 // ^ 1/2

abs(x) = 2/15

x = 2/15 or x = -2/15

2*x = 0

2*x = 0 // : 2

x = 0

x in { 2/15, -2/15, 0 }

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