Question

分解因式：(x²+y²)²-4x²y²

Answer 1

您好：

(x²+y²)²-4x²y²
=（x²+y²+2xy）(x²+y²-2xy)
=(x+y)²(x-y)²

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Answer 2

(x²+y²)²-4x²y²坦皮
=(x²+y²-2xy)(x²+y²行汪+2xy)
=(x-y)²(x+y)²让带差

Answer 3

(x²+y²兆如)²-4x²y²顷铅
=x⁴+2x²y²+y⁴-4x²y²
=x⁴-2x²y²+y⁴
=(x²-y²)²雀猜好
=[（x+y）（x-y）]²

Answer 4

(x²+y²)²-4x²携衡陵y²=x4+y4+2x²y²-4x²拦野y²=(x²-y²)²=（x-y）2（辩戚x+y）2

Answer 5

=[（x+y）（知谨信辩x-y）]²搭坦基