(3x-2y)( y-3x)怎样算

(3x-2y)( y-3x)怎样算 x+(-y+3) x-(-3-y) -(x-y)+3 3-(X+Y) 怎样去括号?快 x(x-y)2-(y-x)3 [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 化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x x+y=36；x-（y-x）=3/4x. 怎样算 x^2(x+2y)-9x^2(3x+y)^2怎样因式分解? 若线段x ,y 满足[2x-3y]*[3x+2y]=0 则x/y=?怎样算出2x-3y=0或3x+2y=0 当2x-3y=0时,x/y=3/2 当3x+2y=0时,x/y [(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y) 计算：x+2y/x-y+2x/y-x-3y/x-y 化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方 (y-x)(x-y)^3(y-x)^5怎么算 2X(2X-3Y)-3Y(X+Y) (-2x y)^2-(3y-x)(-x-3y) （x+2y)^2-(x+y)(3x-y) 计算(x+y)(x+y)^2(-x-y)^3