化简：{[(2a-b)/(a+b)]-[b/(a-b)]}÷[(a-2b)/(a+b)]

来源：学生作业帮编辑：拍题作业网作业帮分类：数学作业时间：2024/05/02 01:17:26

{[(2a-b)/(a+b)]-[b/(a-b)]}÷[(a-2b)/(a+b)]
=(2a²-4ab)/[(a+b)(a-b)]×(a+b)/(a-2b)
=(2a²-4ab)/(a-b)/(a-2b)
=2a/(a-b)

化简：{[(2a-b)/(a+b)]-[b/(a-b)]}÷[(a-2b)/(a+b)] 化简(2a-b/a+b-b/a-b)除以a-2b/a +b 化简(2a-b/a+b-b/a-b)除以a-2b/a+b 化简 (a²+b²/a²-b²-a-b/a+b)÷2ab/(a-b)(a+b)& a-b+2b²/a+b a+b>a-b, (a-b)(a b) a/b-b/a 计算：((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b) 计算·[(2a+-b)/(a+b)-b/(a+b)]/(a-2b)/(a+b) (a-b)(a+b)²-(a+b)(a-b)²+2b(a²+b²) 现规定一种运算a*b=(a-b)^2+(a-b)(a+b),其中a,b是实数,化简b*(b-a)+(b-a)*b