数学题目(因式分解)
3x^2-2x+1/3
9(a+b)^2+30(a-b)(a+b)+25(a+b)^2
(x^2-2x)^2+2x(x-2)+1
2m^2n^2+8mn+8+x(mn+2)^2
(a-b)^2(3a-2)+(2-3a)a^2