化简求值:若4x2+4x+y2-6y+10=0,试求(x2+2y2+3)(x2+2y2-3)-(x-2y)2(x+2y)2的值
化简求值:若4x2+4x+y2-6y+10=0,试求(x2+2y2+3)(x2+2y2-3)-(x-2y)2(x+2y)2的值....
化简求值:若4x2+4x+y2-6y+10=0,试求(x2+2y2+3)(x2+2y2-3)-(x-2y)2(x+2y)2的值.
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