Автор - yeahboiii

Помогите решить
(8+3√2)*(8-√18)
(√7-√5)*(√63+3√5)

Ответ

Автор - Sergey7A

(8+3√2)*(8-√18)  = (8+3√2)*(8-3√2)  = 64 - 18 = 46

(√7-√5)*(√63+3√5) = (√7-√5)*(3√7+3√5) = 3(√7-√5)*(√7+√5) = 3(7 - 5) = 6



Ответ

Автор - eva1248
√18=3√2

(8+3√2)(8-3√2)=64-18=46
√63=3√7
(√7-√5)*3(√7+√5)=3(7-5)=6

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