化简,亲快啊啊急!(3x-2y)(7x-y)-(4x+3y)(x-y)
化简,亲快啊啊急!(3x-2y)(7x-y)-(4x+3y)(x-y)
1.((y+2x)(-2x+y)+4(x+2y)^2)/3y 2.(2(x-y)^3-8(x-y)^2(x+y)+6y(
(x-4y)分之(3x)+(4y-x)分之(x+y)-(x-4y)分之(7y)
(X-3Y)(X+3Y)-(X+2Y)(X-4Y)-(2X-Y)2的平方
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方
计算2x/x^2-y^2 3x/y^2-x^2 y/(x y)(y-x)快!
化简:2(3x-y)-3(x+7y)
因式分解(X+2Y)(3X-7Y)平方-4(X+2Y)(X+Y)平方
化简 3(X-Y)²-4(X-Y)+7(X-Y)-6(X-Y)²
(x-y)(x-2y)-(3x-2y)(x-3y)
计算:(3x-4y)-[-(2y+x)+(x-3y)]-6x
(3x-y)²-2x(4x-5y)-(x+2y)²