Find the following. Assume the variables can represent any real number.

�ã((a+7)^2 )
When I tried to do this I got completely lost.
�ã((a+7)^2 )=„ a+7„ 
I'm not doing this right am I?

Just like √(5^2) = 5 , so

√(a+7)^2 = a+7