化简:a√a-b√b /a+b+√(ab),我复述

化简:a√a-b√b /a+b+√(ab),我复述一下:a+b+根号ab 分之 a倍根号a-b倍根号b

3个回答

(a√a-b√b )/(a+b+√ab)
=(a√a-b√b )(√a-√b )/[(a+b+√ab)(√a-√b)]
=(a√a-b√b )(√a-√b )/(a√a-b√b )
=(√a-√b )