Question 419231
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Hi
completing the square
   x^2+2x   = 2 
recommend thinking what would 'come in handy' to get (x+1)^2 on left side...
and adding that number 1 to both sides of the equation.
{{{x^2 + 2x + highlight(1) = 2 + highlight(1) }}}
   (x+1)^2 = 3