8x^3-6x+1=0的解是多少?(0
4个回答

1/(4*(- 1/16 + (3^(1/2)*i)/16)^(1/3)) + (- 1/16 + (3^(1/2)*i)/16)^(1/3)

- 1/(8*(- 1/16 + (3^(1/2)*i)/16)^(1/3)) - (- 1/16 + (3^(1/2)*i)/16)^(1/3)/2 - (3^(1/2)*(1/(4*(- 1/16 + (3^(1/2)*i)/16)^(1/3)) - ((3^(1/2)*i)/16 - 1/16)^(1/3))*i)/2

- 1/(8*(- 1/16 + (3^(1/2)*i)/16)^(1/3)) - (- 1/16 + (3^(1/2)*i)/16)^(1/3)/2 + (3^(1/2)*(1/(4*(- 1/16 + (3^(1/2)*i)/16)^(1/3)) - ((3^(1/2)*i)/16 - 1/16)^(1/3))*i)/2