A^2+(A+1)^2+(A+A^2)^2=?
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A^2+(A+1)^2+(A+A^2)^2=?A^2+(A+1)^2+(A+A^2)^2=?A^2+(A+1)^2+(A+A^2)^2=?=A^2+(A+1)^2+(A+A^2)^2=A^2+(A+1
A^2+(A+1)^2+(A+A^2)^2=?
A^2+(A+1)^2+(A+A^2)^2=?
A^2+(A+1)^2+(A+A^2)^2=?
=A^2+(A+1)^2+(A+A^2)^2
=A^2+(A+1)^2+A^2(A+1)^2
=A^2+(A+1)^2(A^2+1)
=A^2+(A+1)^2[(A+1)^2-2A]
=A^2+(A+1)^4-2A(A+1)^2
=[(A+1)^2-A]^2
=(A^2+A+1)^2
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