提取公因式法(x+y)²-(x+y)³=(x-y)²-(y-x)³=(x-y)&
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提取公因式法1.(x-2)^-x+22.x^2y(x-y)-xy^2(y-x)
用提公因式法计算:x(x-y)²-y(y-x)²
分解公因式X(X-y)+y(y+X)
(x-y)³+9(x-y)-6(x-y)²
(x-y)³(x-y)²(y-x)等于多少
因式分解 提公因式法 x(x+y)(x-y)-2x(x+y)的平方
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
提取公因式法分解因式(x+2y)²+x+2y把多项式a²(x-a)+a(a-x)分解因式,结果是(
若x、y满足2x+y=6,x-3y=1,求7y(x-3y)²-2(3y-x)³的值
{(x,y) |x|+|y|