2(x-3y)-3(2x-y) 化简
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2(x-3y)-3(2x-y) 化简
2(x-3y)-3(2x-y) 化简
2(x-3y)-3(2x-y) 化简
2(x-3y)-3(2x-y)
=2x-6y-6x+3y
=-4x-3y
2(x-y)²-3(x-y)(-y-x)
化简:{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方
(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,
3x+y=2 -y/x+y=123x+y=2 (-y/x)+y=12
化简:2(3x-y)-3(x+7y)
-(5x+y)-3(2x-3y)(化简)
化简(x-y)-4(2x-3y)
3x(x-2y)+(x+2y)(2x-y)-3y(y-2x)
化简((X-2Y)的平方+(X-Y)(x+Y)-2(X-3Y)(X-Y))除以Y
2(x-y)+3(x+y)2-5(x-y)-8(x+y)2-(x-y)
化简:5(x-y)+2(x+y)-3(x-y)