Question 231170
Hello, 
Check out when you added 1 to both sides on the last step. 

Shouldn't it look like this on the last step you did above? 

                        x(sq) - 2x + 1 = 2(not 4)

Now, let's factor x(sq)-2x + 1 = 2

It'll look like this. 

               (x - 1)sq = 2

Let's solve by sq rooting both sides. 

Therefore:          x - 1 = sq rt of 2

Add 1 to both sides gives us 

                       x =  1 +/- sq rt of 2

RJ Toftness
Author "Unlock the Mystery to Math"
www.math-unock.com