Решение задания смотри на фотографии
1 1*√3 √3
```` = ````````` = ````````
√3 √3 *√3 3
√10 + 8 (√10 +8)(√10 +8) (√10+8)² 10+16√10 +64 -37-8√10
``````````` = ````````````````````````` = `````````` = ```````````````````` = ``````````
√10 - 8 (√10 -8)(√10+8) 10 - 64 - 54 27
1 5+√5 5+√5 5+√5
````` = ``````````````````` = ``````````` = ````````````
5-√5 (5- √5)(5+√5) 25 -5 20
Решение смотри в приложении
(2/7+3/14)(-7,5+13,5)=(4/14+3/14)*6=(7/14)*6=(1/2)*6=3
Ответ:
Скачай приложение photomath. И просто впиши туда, там тебе всё выдаст)
Удачи)