SOLUTION: {{{ x^2+3x+2=0 }}}.

Complete the square:
Take 1/2 of the coefficient of ,
square it, and add it to both sides

Take the square root of both sides

(1) ( one root of the equation )
and, taking the negative square root,

(2) ( the other root of th equation )
------------------
Rewriting (1) and (2),
(1)
(2)
and

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