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1分解因式(1)(x+y)^2-6x(x+y)+9x^2(2)a^2+2a(b+c)+(b+c)^2(3)-a^3+2a^2-a(4)4xy^2-4x^2y-y^3 2分解因式:(x-y)^4+x(x-y)^3-y(y-x)^3;4m^3n+4m^2n^2+mn^3
3分解因式:4a^2b^3-16a^3b^4-20a^3b^5;25x^2+10x+1;-a^2-4b^2+4ab;4b^3-16ab^2;4/9m^2-0.01n^2
4分解因式a^2b^2c-abc+1/4c;a^2(x-y)+b^2(y-x);4m(a+3b)^2+12m(a+3b)+9m;-a^5b^5+8a^3b^3-16ab
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