Question

因式分解，快！！谢谢，跪求，急急急!!!!!!!!

（3x-y）^2-4x^2 x^2(a-1)+y^2(1-a) 1/4+a^2+a^4 4x^2-12x+9 ax^2+2(a^2)x+a^3
(m+n)^2-2(m^2-n^2)+(m-n)^2 (a^2+b^2)^2-4a^2b^2 x^2+xy xy^2-x^2y
2a(x+y)-3b(y+x) m(a-b)+n(b-a) 1/81y^2-x^2 -25x^+49y^2 1+2a^2+a^4
1/9x^2+y^2-2/3xy 25m^2-(4m-3n)^2 (x^2-2x^2)-1 4a^3-8x^2+4x m^2(x-y)+n^2(y-x)

Answer 1

（族隐x-y)（消亩5x-y） (a-1)(x-y)(x+y) (a^2+1/2)^2 (2x-3)^2 a(x+a)^2
4n^2 (a^2-b^2)^2 x(2+y) xy(y-x)
(x+y)(2a-3b) (a-b)(m-n) (1/9-x)(1/9+x) (7y-5x)(7y+5x) (a+1)^2
(1/拿穗森3x-y)^2 3(3m-n)(m+3n) (x-1)(x+1) 4x(x-1)^2 (x-y)(m-n)(m+n)