ANSWER

EXPLANATION
The given function is

To find f(a+2) we substitute x=a+2.
That is wherever we see 'x' we replace it with 'a+2'

We simplify further to obtain:

This is defined for

Answer:
<h2 /><h2><u><em>
I guess Ill solve for Y then</em></u></h2><h2><u><em>
Y = xxredd22</em></u></h2><h2><u><em>
</em></u></h2><h2><u><em>
</em></u></h2><h2>;)PLZ Mark me Brainllest or ill be sad :)</h2>