化简(√a+√b+√ab)^2-(√a+√b-√ab)^2
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化简(√a+√b+√ab)^2-(√a+√b-√ab)^2化简(√a+√b+√ab)^2-(√a+√b-√ab)^2化简(√a+√b+√ab)^2-(√a+√b-√ab)^2=(a+b+2√ab+2a
化简(√a+√b+√ab)^2-(√a+√b-√ab)^2
化简(√a+√b+√ab)^2-(√a+√b-√ab)^2
化简(√a+√b+√ab)^2-(√a+√b-√ab)^2
=(a+b+2√ab+2a√b+2b√a+ab)-(a+b+2√ab-2a√b-2b√a+ab)
=a+b+2√ab+2+2b√a+ab-a-b-2√ab+2a√b+2b√a-ab
=4(a√b+b√a)
√ab)^2-(√a+√b-√ab)^2
提问者: 捷安特XT1
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