=))) pi = 3.14159265...
Ma prezint elegant, sa par si eu om.
Delta = b * b - 4 * a * c.
daca delta < 0, vorbind in R - ca in C e mai complicata treaba -, x1 = x2 si apartin multimii vide.
daca delta = 0, atunci x1 = x2 = -b / 2a
altfel x1 = (-b - sqrt(delta))/2a && x2 = (-b + sqrt(delta))/2a
cp
3x+1 = 4 | -1 <=> 3x = 3 | / 3 <=> x = 1.
Nu ms.
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