Ответ:
(√17-√7)(√17+√7)=17-7=10
(√17-√7)(√17+√7)=(√17)²-(√7)²=17-7=10.
(a-b)(a+b)=a²-b².
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Ответ:
(√17-√7)(√17+√7)=17-7=10
(√17-√7)(√17+√7)=(√17)²-(√7)²=17-7=10.
(a-b)(a+b)=a²-b².