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2.(x+y)²(x-y)²-(x-y)(x+y)(x²+y²)
计算:(x-y)的5次方(x-y)²(x-y)³
运用乘法公式计算:(1)(x-y)(x+y)-(2x-y)²
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)²]
计算 [12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²
计算:(x+y)²-4(x+y)(x-y)+4(x-y)²
(xy-x²)²÷(x-y)²/xy·x-y/x² 计算
计算:①-x·(y-x)³·(x-y)的四次方 ②(x-y)²·(y-x)³·(x-y)的
计算(x²/x+2y)-x+2y-2
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
因式分解(x+y)²(x-y)-(x+y)(x²+y²)
(x+y)²(x-y)+(x+y)(x-y)²