3x(x-2y)+(x+2y)(2x-y)-3y(y-2x)
来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 06:36:54
3x(x-2y)+(x+2y)(2x-y)-3y(y-2x)
3x(x-2y)+(x+2y)(2x-y)-3y(y-2x)
3x(x-2y)+(x+2y)(2x-y)-3y(y-2x)
3x(x-2y)+(x+2y)(2x-y)-3y(y-2x)
=3x(x-2y)+ (x+2y)(2x-y)+3y(2x-y)
=3x(x-2y)+ (x+2y+3y)(2x-y)
=3x(x-2y)+ (x+5y)(2x-y)
= 3x²-6xy + 2x²-5y²+10xy -xy
= 5x² +3xy -5y²
你想求什么啊
这是一道题还是两道题啊?
我把它看成两道题了!
2(x-y)²-3(x-y)(-y-x)
(x-y)(x-y)2(y-x) (x+2y-?)(x-2y+?)
(y-x)^4(x-y)^3+2(x-y)^6(y-x)
(x-y)^3×(y-x)^4+(x-y)^2×(y-x)^5
12(x+y)^3(y-x)/【4(x+y)^2(x-y)】
计算(x-y)^2×(x-y)^3×(y-x)×(y-x)^2
(x+y)/2- x-y/2=6 3(x+y)=4(x-y)
2分之x+y+3分之x-y;4(x+y)-(x-y)谢谢了,
(x-2y)(x+y)+(x+y)计算
计算:(x-y)^2-(x+y)(x-y)
x(x-y)2-(y-x)3
3x(x-2y)+(x+2y)(2x-y)-3y(y-2x)
2(x-y)+3(x+y)2-5(x-y)-8(x+y)2-(x-y)
(x-y/x+2y)³
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
[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