Ответ:
Объяснение:2.1)=4√a-3/4·4·√a-12·1/3√a =4√a-3√a-4√a = - 3√a.
2) =(√c)²-(√b)²=c-b.
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Ответ:
Объяснение:2.1)=4√a-3/4·4·√a-12·1/3√a =4√a-3√a-4√a = - 3√a.
2) =(√c)²-(√b)²=c-b.