x^3y+3x-3x^2y^2-6y

来源：学生作业帮编辑：百度作业网作业帮分类：数学作业时间：2024/04/29 16:29:57

x^3y+3x-3x^2y^2-6y

刚才说了,这个题目有问题
改一下吧
x^3y+3x-2x^2y^2-6y
=x³y-2x²y²+3x-6y
=x²y(x-2y)+3(x-2y)
=(x-2y)(x²y+3)
再问：恩恩、、谢谢亲、、不过还有几道题需要你解、、你最好了亲 1-m^2-n^2+2mn x^2-6x+9-y^2 2xy-x^2+1-y^2 4x^2-4xy+y^2-a^2 6xy+1-x^2-9y^2
再答： �ף�ֻ��Ϊ��Ŀ̫��ˣ��û��Ը��ش�� 1-m^2-n^2+2mn=1-(m²-2mn+n²)=1-(m-n)²=(1+m-n)(1-m+n) x^2-6x+9-y^2=(x-3)²-y²=(x-3+y)(x-3-y) 2xy-x^2+1-y^2=1-(x²-2xy+y²)=1-(x-y)²=(1+x-y)(1-x+y) 4x^2-4xy+y^2-a^2=(2x-y)²-a²=(2x-y+a)(2x-y-a) 6xy+1-x^2-9y^2=1-(x²-6xy+9y²)=1-(x-3y)²=(1+x-3y)(1-x+3y)

因式分解3x^2(x-y)+6x(y-x) 【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2= 因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)( [(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y) 化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方【x-3y][x+y]-[x-2y][x +2y]-[x-y 有这样一道题:"计算(2*x*x*x-3*x*x*y-2*x*y*y)-(x*x*x-2*x*y*y+y*y*y)+【- 2(2x+3y)(3x+2y)-(6x-y)(2x-5y) 1.（（y+2x)(-2x+y)+4(x+2y)^2)/3y 2.（2(x-y)^3-8(x-y）^2(x+y)+6y( x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20 {(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20 4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6