分解因式;(x²+y²)²-4x²y²因式分解还有(z+1)²-4z(z²+1)+4z²因式分解
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分解因式;(x²+y²)²-4x²y²因式分解还有(z+1)²-4z(z²+1)+4z²因式分解
分解因式;(x²+y²)²-4x²y²因式分解
还有(z+1)²-4z(z²+1)+4z²因式分解
分解因式;(x²+y²)²-4x²y²因式分解还有(z+1)²-4z(z²+1)+4z²因式分解
原式=(x²+y²+2xy)(x²+y²-2xy)
=(x+y)²(x-y)²
原式=[(z+1)-2z]²
=(1-z)²
=(z-1)²
(z+1)²-4z(z²+1)+4z²
=(z+1-2z)²
=(1-z)²
(X²-y²)²