Предмет: Алгебра, автор: fantombuda

Очень срочно, помогите.
Простите выражение ​

Приложения:

Ответы

Автор ответа: lychick0638
0

Відповідь:

відправила

Пояснення:

Приложения:
Автор ответа: 7x8
0

Ответ:

а) -2\sqrt3

б) 30\sqrt2

в) 6\sqrt2

г) -4\sqrt 3

Объяснение:

а)

(\sqrt3-1)^2-4=3-2\sqrt3+1-4=-2\sqrt3

б)

(3+5\sqrt2)^2-59=9+30\sqrt2+50-59=30\sqrt2

в)

9-(\sqrt6-\sqrt3)^2=9-(6-2\sqrt{18}+3)=9-6+\sqrt{18}-3=2\sqrt{18}=\\\\2\cdot 3\sqrt2=6\sqrt2

г)

13-(2\sqrt3+1)^2=13-(12+4\sqrt3+1)=13-12-4\sqrt3-1=-4\sqrt 3

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