Question

Спростіть вираз

√36а-√81а+√121а

Answer 1

√36а-√81а+√121а=6a-9a+11a=8a

Answer 2

$sqrt{36a}-sqrt{81a}+sqrt{121a}=6sqrt{a}-9sqrt{a}+11sqrt{a}=sqrt{a}(6-9+11)=8sqrt{a}$

 

 

$sqrt{36}a-sqrt{81}a+sqrt{121}a=6a-9a+11a=a(6-9+11)=8a$