4x³-4x²y-(x-y)

计算 [12(x+y)³(y-x)]³÷[4(x+y)²（x-y)]² (2x-y)²-4(x-y)(x+2y) 化简：（2x-y)²-4(x-y)(x+y) (x+y)²+4(x+y)-5 多项式因式分解 1,(x-y)³-(x-y)²(x+y) 2,x(x²-xy)-(4x&# x(x-y)+4(y-x)因式分解 计算：(x+y)²-4(x+y)(x-y)+4(x-y)² 化简 3(X-Y)²-4(X-Y)+7(X-Y)-6(X-Y)² （x-2y）²+（2x-4y)(x+y)+(x+y)² 因式分解：(x-y)(3x-7y)²-4(x-y)(x+y)² (2x+y)³-(x-2y)³因式分解 -4x³y+16x²y²-16 计算4（x+y）^5（x-y）^4÷[2（x+y）³*（y-x）²]