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

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


x in (-oo:+oo)

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

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

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

15*x^4-9*x^3 = 0

3*x^3*(5*x-3) = 0

5*x-3 = 0 // + 3

5*x = 3 // : 5

x = 3/5

3*x^3*(x-3/5) = 0

(3*x^2*x^3*(x-3/5))/3 = 0

( 3*x^3 )

3*x^3 = 0 // : 3

x^3 = 0

x = 0

( x-3/5 )

x-3/5 = 0 // + 3/5

x = 3/5

( x^2 )

1*x^2 = 0 // : 1

x^2 = 0

x = 0

x in { 0, 3/5, 0 }

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