
分解因式(x-2y)²-(x+2y)²+2x²+8y²
展开全部
(x-2y)²-(x+2y)²+2x²+8y²
=[(x-2y)-(x+2y)]*[(x-2y)+(x+2y)]+2x²+8y²
=[-4y]*[2x]+2x²+8y²
= -8xy+2x²+8y²
=2(-4xy+x²+4y²)
=2(x-2y)²
=[(x-2y)-(x+2y)]*[(x-2y)+(x+2y)]+2x²+8y²
=[-4y]*[2x]+2x²+8y²
= -8xy+2x²+8y²
=2(-4xy+x²+4y²)
=2(x-2y)²
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询