(3x - 8) = 4 + 2(x - 4)1/2 + x - 4
This is where you squared right? I understand where you got that first 4, but i'm unsure about the 2 and the x-4.

In comparison to the example problem at this step. I don't know how to use subscripts like you so I apologize.

2x-1 = x-5+6 the square root of x-5 + 9


Just to mention in the hinto I'm shown there is no paretheses around the square root of x-5 is it still assumed to multiply?