Posted by Aisumi on Wednesday, September 29, 2010 at 12:17pm.
x^2-2x + ...=5
half of -2,then square it.
x^2-2x+1=5+1
(x-1)^2=(sqrt6)^2
you finish.
i don't know how?(:<
(x-1)^2=sqrt6^2
Take the square root of both sides.
x-1=sqrt6..
you have to know how to finish from here
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