15x^9-9x^4-15x^2/-3x^2

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Solution for 15x^9-9x^4-15x^2/-3x^2 equation: 


x in (-oo:+oo)

15*x^9-(9*x^4)-(((15*x^2)/(-3))*x^2) = 0

15*x^9-9*x^4+5*x^4 = 0

15*x^9-4*x^4 = 0

x^4*(15*x^5-4) = 0

15*x^5 = 4 // : 15

x^5 = 4/15

x^5 = 4/15 // ^ 1/5

x = (4/15)^(1/5)

x^4 = 0

1*x^4 = 0 // : 1

x^4 = 0

x = 0

x in { (4/15)^(1/5), 0 }

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