化简:-5/12(x+y)²*(-x-y)*[-3/4(x-y)³]*6/5(y-x)²
參考答案::-5/12(x+y)�(-x-y)*[-3/4(x-y)砞*6/5(y-x)�
=[-5/12*(-3/4)*6/5]*[x+y]^2[-(x+y)][x-y]^3[x-y]^2
=-3/8[x+y]^3[x-y]^5
=-3/8[(x+y)(x-y)]^3(x-y)^2
=-3/8(x^2-y^2)^3(x-y)^2
化简:-5/12(x+y)²*(-x-y)*[-3/4(x-y)³]*6/5(y-x)²
參考答案::-5/12(x+y)�(-x-y)*[-3/4(x-y)砞*6/5(y-x)�
=[-5/12*(-3/4)*6/5]*[x+y]^2[-(x+y)][x-y]^3[x-y]^2
=-3/8[x+y]^3[x-y]^5
=-3/8[(x+y)(x-y)]^3(x-y)^2
=-3/8(x^2-y^2)^3(x-y)^2