(1).(x+y)(a+2b)(2).(2a+3)(2/3b+5)(3).(2x+3)(-x-1)(4).(-2m-1)(3m-2)(5).(x-y)^2(6).(-2x+3)^2

通分 a/(y-x)^2,b/(x-y)(x+y) 因式分解a(x-y)+b(y-x)+(2x-y) (x+y)(a-2b) 因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(因式分解(1)6(x-y)^3-3y(y-x)^2(2)x(x-y)(a-b)-y(y-x)(b-a)(3)(a+b)(a+b-1)-a-b+1 十字相乘法分解因式(只要答案) x*x-2x-1 x*x-2ax-3a*a a*a*a-b*b*b x*x+x-(y*y+y)x*x-2x-1 x*x-2ax-3a*a a*a*a-b*b*b x*x+x-(y*y+y) 应是分解a^2(a-b)+(b-a)(x-y)^2-2(y-x)+1 (x/2y)^2*y/2x-x/y^2/2y^2/x(x/x+y+2y/x+y)*xy/x+2y/(1/x+1/y)(1/a+1/b)^2/(1/a^2-1/b^2) 填空：(b-a)(2x-y+1)=(a-b)( ) A={(X,Y)|X+Y>=1},B={(X,y)|X^2+y^2=1},B={(X,y)|X^2+y^2 (3x-y)(3x+y)+y(x+y);(a+1/2b)(a-1/2b)-(3a-2b)(3a+2b)快点, 超简单的因式分解1、a(x-y)-b(x-y)-c(y-x)2、(b-a)^2-2a+2b3、x(x-y)(a-b)-y(y-x)(b-a) 1、x(x-y)(x+y)-x(x+y)^22、（2a+b)(2a-3b)-3a(2a+b) 因式分解：（1）、(2a-3b)(7x+y)+(x-5y)(3b-2a)（2）、（x+y）^3(x+y)^2-(-x-y) 1.x（x-y）+y（y-x）2.9（a-b）^2-16(a+b)^2 3.25(x-y)^2+10(y-x)+1 (1).(2x-y)(2x+y)-(3x+2y)(3x-2y) (2).(2a-b)(2a+b)-(2a-b)^2 2x/x+y+2y/x+y a/a+b+b/a-b 1/3x²+2/4y-5/6xy解出来快 因式分解(a-b)^2-6(b-a)+9.25(x-y)^2+10(y-x)+1 因式分解(a-b)^2-6(b-a)+9.25(x+y)^2+10(y-x)+1