[(x+y)(x-y)]^3 × [(x+y)^2]^2×[(x-y)^3]^2=?大家迅速点好么=
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[(x+y)(x-y)]^3×[(x+y)^2]^2×[(x-y)^3]^2=?大家迅速点好么=[(x+y)(x-y)]^3×[(x+y)^2]^2×[(x-y)^3]^2=?大家迅速点好么=[(x+
[(x+y)(x-y)]^3 × [(x+y)^2]^2×[(x-y)^3]^2=?大家迅速点好么=
[(x+y)(x-y)]^3 × [(x+y)^2]^2×[(x-y)^3]^2=?大家迅速点好么=
[(x+y)(x-y)]^3 × [(x+y)^2]^2×[(x-y)^3]^2=?大家迅速点好么=
原式=（X+Y）^7(X-Y)^9.
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