x+2y+47的平方分之x-2y+4x的平方分之4y的平方-X的平方
2个回答
展开全部
=[(x+2y)(x-2y)+4y²]/(x-2y)-4x²y/(x+2y)(x-2y)
=x²/(x-2y)-4x²y/(x+2y)(x-2y)
=[x²(x+2y)-4x²y]/(x+2y)(x-2y)
=x²(x-2y)/(x+2y)(x-2y)
=x²/(x+2y)
=x²/(x-2y)-4x²y/(x+2y)(x-2y)
=[x²(x+2y)-4x²y]/(x+2y)(x-2y)
=x²(x-2y)/(x+2y)(x-2y)
=x²/(x+2y)
本回答由提问者推荐
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
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
