题目内容
把多项式(x2+ y2)2-4x2y2分解因式的结果是( )A.(x2+y2-2xy)(x2+y2+2xy) B.(x2+ y2-4xy)2
C.(x2+y2-4xy)(x2+ y2+4xy) D.(x+y)2(x-y)2
答案:D
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题目内容
把多项式(x2+ y2)2-4x2y2分解因式的结果是( )A.(x2+y2-2xy)(x2+y2+2xy) B.(x2+ y2-4xy)2
C.(x2+y2-4xy)(x2+ y2+4xy) D.(x+y)2(x-y)2