20x^2-30x/15x^2-15x^3

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Solution for 20x^2-30x/15x^2-15x^3 equation: 


x in (-oo:+oo)

20*x^2-(((30*x)/15)*x^2)-(15*x^3) = 0

20*x^2-2*x^3-15*x^3 = 0

20*x^2-17*x^3 = 0

x^2*(20-17*x) = 0

20-17*x = 0 // - 20

-17*x = -20 // : -17

x = -20/(-17)

x = 20/17

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

x in { 20/17, 0 }

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