分解因式:(x²+y²)²-4x²y²

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分解因式:(x²+y²)²-4x²y²
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分解因式:(x²+y²)²-4x²y²
分解因式:(x²+y²)²-4x²y²

分解因式:(x²+y²)²-4x²y²
(x²+y²)²-4x²y²
=(x²+y²+2xy)(x²+y²-2xy)
=(x+y)²(x-y)²
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(x²+y²)²-4x²y²
=(x²+y²-2xy)(x²+y²+2xy)
=(x-y)²(x+y)²

(x²+y²)²-4x²y²=x4+y4+2x²y²-4x²y²=(x²-y²)²=(x-y)2(x+y)2

X4+y4+2x2y2-4x2y2=x4+y4-2x2y2=(x2-y2)2

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

=[(x+y)(x-y)]²