(2x-y)-2x＋4y (-12a^3b＋6a^2b^3-2ab^2)÷(-2a(2x-y)-2x＋4y(-12a^3b＋6a^2b^3-2ab^2)÷(-2ab)

(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y) 因式分解：a(x-y)^2+b(y-x)^3 4(x-y)^2+8(y-x)(x+y)1.a(x-y)^2+b(y-x)^3 2.4(x-y)^2+8(y-x)(x+y) (1)x^2*x^8+x^13/x^3 (2)a^19/a^12/a^3 (3) (x-2y)^5/(2y-x)^3 (4)(x-y)^5/(x-y) (5)(x-y)^6/(y-x)^4 因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) 12（x+y）^3（y-x）/【4（x+y）^2(x-y)】 （3a^3/X+Y)^3*(X^2-Y^2)除以（Y-X/Y+X)^2 (x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)= [1]a(x-2y)-b(2y-x)+d(2x-4y) [2]x平方-2xy+y平方-2x+2y+1 【3】一（a-x)(a-y）-x(y-a)(X-a)[1]a(x-2y)-b(2y-x)+d(2x-4y) [2]x平方-2xy+y平方-2x+2y+1【3】一（a-x)(a-y）-x(y-a)(X-a) 分解因式,急求! 1.(-2/3x-3/2y)² 2.x²-(x+2)(x-2)-(x+x/1)² 3.[(x+y)²-(x-y)²]/(2xy)4.3x-12x³ 5.-2a³+12a²-18a 6.9a²(x-y)+4b²(y-x) 7.(x+y)²+2(x+y)+1 (x-2y)^5=a0(x+2y)^5+a1(x+2y)^4*y+a2(x+2y)^3*y^2+a3(x+2y)^2*y^3+a4(x+2y)y^4+a (x+3y-4)(2x-y) 因式分解：4a^2(x-y)+9(y-x) -4x^2y^2+x^3y+4xy^3 因式分解：4a^2(x-y)+9(y-x) -4x^2y^2+x^3y+4xy^3 计算（2x-3y)(x+4y)-(3x+y)(x-2y)（2x-3y)(x+4y)-(3x+y)(x-2y) 因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+（x-3y)(x-5y)+(x-2y)(x-4y) x^2*x^8+x^13/x^3 a^19/(a^12/a^3) (x-2y)^5/(2y-x)^3 (x-y)^5/(x-y) (x-y)^6/(y-x)^4 (x-2y)^6/(2y-x)^3 a(x+y)^2+4a-4a(x+y) x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x²