(a- √ab -2b)分之(a - 2√ab) +(a√a + b√b)分之(a√b -b√a +b√b) 化简

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(a- √ab -2b)分之(a - 2√ab) +(a√a + b√b)分之(a√b -b√a +b√b) 化简
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(a- √ab -2b)分之(a - 2√ab) +(a√a + b√b)分之(a√b -b√a +b√b) 化简
(a- √ab -2b)分之(a - 2√ab) +(a√a + b√b)分之(a√b -b√a +b√b) 化简

(a- √ab -2b)分之(a - 2√ab) +(a√a + b√b)分之(a√b -b√a +b√b) 化简
=√a(√a-2√b)/(√a-2√b)(√a+√b) +√b(a-√ab+b)/(√a+√b)(a-√ab+b)
=√a/(√a+√b)+√b/(√a+√b)
=(√a+√b)/(√a+√b)
=1