X-Yi=(a+b)^3
(x/a +y/b )(1/a^2+b^2) =( -2)
X=a^3-3ab^2=a(a^2-3b^2) lmplies x/a=a^2-3b^2
Y=b^3-3a^2b=b(b^2-3a^2)lmplies y/b=b^2-3a^2
By addition
=-2a^2-2b^2=-2(a^2+b^2)=X/a+Y/b_
Then
2
: 1 (0 1 )
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