Question

Can someone please help me with this question

Answer 1

A. 

To solve, you need to get the variable by itself. 
Order of operations:
Square root both sides.
(x-5)= plus/minus root 3, as 3 is not a perfect square.
Now you need to add 5 to both sides to get it to disappear on the side with the x.

x=root3 +or - 5, which can be rearranged so that 5 is the first term.

Answer 2

25_+10root3+3-2[(-5-+root3)(5)]+25=3