作业帮帮忙化简下(2x+y)^2-(2x+y)(x-y)-2(x-2y)(x+2y)看了头大``帮忙下`谢谢`
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/15 08:33:46
x){c3L{Ɏn
J8#]CBRSH8@'ڞ.tvƄQMR>醂u2YΆF&҅&qF&ڕ@RL@lZ
b]#XQ d Lж@64 VTBF@Ś6yv ?
帮忙化简下(2x+y)^2-(2x+y)(x-y)-2(x-2y)(x+2y)看了头大``帮忙下`谢谢`
帮忙化简下(2x+y)^2-(2x+y)(x-y)-2(x-2y)(x+2y)
看了头大``帮忙下`谢谢`
帮忙化简下(2x+y)^2-(2x+y)(x-y)-2(x-2y)(x+2y)看了头大``帮忙下`谢谢`
(2x+y)^2-(2x+y)(x-y)-2(x-2y)(x+2y)
=4x^2+4xy+y^2-(2x^2-xy-y^2)-2(x^2-4y^2)
=(4x^2-2x^2-2x^2)+(4xy+xy)+(y^2+y^2+8y^2)
=10y^2+5xy
=5y(2y+x)
(x+2y)²-2（x-y)(x-y)+2y(x-3y)帮忙化简下,准确一点哦,
帮忙化简下(2x+y)^2-(2x+y)(x-y)-2(x-2y)(x+2y)看了头大``帮忙下`谢谢`
帮忙做2个题 （x+y+1)(x+y-1) (2x-y-3)²
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
化简y(x+y)+(x+y)(x-y)-x^2
(x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2
【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
因式分解x(x+y)(x-y)-x(x+y)^2
[(x-y)^2-(x+2y)(x-2y)]/y
计算:y-x分之x+y+x-y分之y-y-x分之2x-y
x^2(x-y)+(y-x)
x(x-y)2-(y-x)3
【(x-y)^2+(x+y)(x-y)】除以 2x
[(x-y)²+(x+y)(x-y)]除以2x
化简：[(x+y)(x-y)(x+y)^2-2y(x-2y)](-2y) 谢谢!
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
化简：{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x