ab^3/2-b^1/2/a^1/2-b^1/2

Ab^3/2-b^1/2/a^1/2-b^1/2 a√b^3-√b/√a-b^1/2ab√b-√b/√a-b^1/2(ab√b-√b)*(√a+b^1/2)/a-bab√ab+ab^3/2√b-√ab-b^1/2√b/a-bab√ab+ab^3/2b^1/2-√ab-b^1/2*b^1/2/a-bab√ab+ab^4/2-√ab-b/a-bab√ab+a√b^4-√ab-b/abab√ab+ab^2-√ab-b/a-b