(X²+Y²)（X²+Y²-2）+1=0求X²+Y²的值

x��R�J�`��A�.��4���#��]�0�-?f���?2%�E��z1��/o��65���1���<�<�=B*:���v��#��;<5��SS�p����h-�eS8:���P,���''a5Q��ay&0�D8fm:�rK��JY�s<������zQ��$�F�:��L�+�B�*2d�WP/O*ZbMG�����d?T�ѢF��r7j�4R���6�iG�v$,�k��۲:+a4HF���D��iJ