5x-15x^2/25x^2-75x

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Solution for 5x-15x^2/25x^2-75x equation: 


x in (-oo:+oo)

5*x-(((15*x^2)/25)*x^2)-(75*x) = 0

(-3/5)*x^4+5*x-75*x = 0

-3/5*x^4-70*x = 0

-x*(3/5*x^3+70) = 0

3/5*x^3 = -70 // : 3/5

x^3 = -350/3

x^3 = -350/3 // ^ 1/3

x = -(350/3)^(1/3)

-x = 0

-1*x = 0 // : -1

x = 0

x in { -(350/3)^(1/3), 0 }

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