&
so ,
.
<u>Step-by-step explanation:</u>
Here we have , ab= 8 & a^2+b^2=16 i.e.
and
.
We need to find value of (a+b)^2 i.e.
:
It's and identity and we know that 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
∴
&
so ,
.
Answer:
we know that
The radicand of the function must be greater than or equal to zero
so
the solution is the interval---------> [-6,∞)
therefore
the answer is
The domain are all values of x greater than or equal to minus six
Answer:

Step-by-step explanation:

=


= 
= 
= 
= 

<em>Hope this helps! <3</em>

Answer:
use wolfram alfa
Step-by-step explanation:
It’s a life saver