I've been trying to grasp the concept of completing the square, but it still confuses me. I am completely stumped on these two questions. It is probably a stupid mistake I'm making or something-- I just keep getting the wrong answers. Any help/tips would be appreciated.

(1)3x^2-5x-2=0

(2){} = sq rooted

{2x-1} - {x+3}=1

Thanks for your time.