暑假作业因式分解(x+y-2xy)(x+y)+(xy-1)2急,最后的2是（xy-1)的平方的意识变成(x+y-2xy)(x+y-2)+(xy-1)2

来源：学生作业帮助网编辑：作业帮时间：2024/04/29 23:42:14

暑假作业因式分解(x+y-2xy)(x+y)+(xy-1)2急,最后的2是（xy-1)的平方的意识变成(x+y-2xy)(x+y-2)+(xy-1)2
暑假作业因式分解(x+y-2xy)(x+y)+(xy-1)2
急,最后的2是（xy-1)的平方的意识
变成(x+y-2xy)(x+y-2)+(xy-1)2

暑假作业因式分解(x+y-2xy)(x+y)+(xy-1)2急,最后的2是（xy-1)的平方的意识变成(x+y-2xy)(x+y-2)+(xy-1)2
x+y-2XY)(x+y-2)+(xy-1)^2
=[（x+y)-2xy][(x+y)-2]+(xy-1)^2
=(x+y)^2-2(xy+1)(x+y)+4xy+x^2y^2-2xy+1
=(x+y)^2-2(xy+1)(x+y)+x^2y^2+2xy+1
=(x+y)^2-2(xy+1)(x+y)+(xy+1)^2
=[(x+y)-(xy+1)]^2
=(x+y-xy-1)^2
=[x(1-y)-(1-y)]^2
=(x-1)^2(1-y)^2
=(x-1)^2(y-1)^2

x的平方+2xy+y的平方-2(x的平方）y-2x（y的平方）-x的平方y的平方+2xy-1

(x+y)(x+y)-2xy(x+y)+(x-y)(x-y)

暑假作业因式分解(x+y-2xy)(x+y)+(xy-1)2急,最后的2是（xy-1)的平方的意识变成(x+y-2xy)(x+y-2)+(xy-1)2 因式分解：x方y+2xy+y (x+y)/x /(x-(2xy-y^2)/x) 因式分解因式分解：x×x-xy-2y×y-x-y -xy^2(x+y)^3+x(x+y)^2因式分解因式分解:8(x-2y)-x(7x+y)+xy. 2x^2-xy-y^2因式分解因式分解x^2+xy-2y^2 X^2Y-2XY^2 因式分解因式分解:-x^2+2xy-y^2 xy+2x+y+2因式分解因式分解:x^2y+xy^2=? x^2-xy-4+2y因式分解 xy-2x+y-2因式分解, (x+2y)^2-8xy 因式分解因式分解x^2-3xy+y^2 x^2-3xy+y^2因式分解因式分解-X^2+2XY-Y^3