14x^3-21x/7x

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Solution for 14x^3-21x/7x equation: 


x in (-oo:+oo)

14*x^3-(((21*x)/7)*x) = 0

14*x^3-3*x^2 = 0

14*x^3-3*x^2 = 0

x^2*(14*x-3) = 0

14*x-3 = 0 // + 3

14*x = 3 // : 14

x = 3/14

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

x in { 3/14, 0 }

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