Solve for x. I know you have to extract the roots, but I'm not sure about the +/-

There are two possibilities:

x-1=x-2

x-1=2-x

First equation does not have any solutions. Second one gives x=3/2.

Or you can expand both sides.

x

^{2}-2x+1=x^{2}-4x+4From this you will get, by moving numbers to the right, and x-containing terms to the left:

x

^{2}-2x-x^{2}+4x=4-12x=3

x=3/2

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