3x^4 - 2x^2 + 1= 3(x^4 - 2x^2/3 + 1/3)= 3(x^4 - 2x^2/3 + 1/9) + 2/3= 3(x^2 - 1/3)^2 + 2/3= [√3(x^2 - 1/3)]^2 - (√6i/3)^2= [√3(x^2 - 1/3) + √6i/3] [√3(x^2 - 1/3) - √6i/3]你是想求什么的?...