Vieta's relations (sum and product of roots) (Sum of roots equals negative b over a; product equals c over a)

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Sum of roots equals negative b over a; product equals c over a

What each symbol means

SymbolWhat it stands for
aLeading coefficient
bLinear coefficient
cConstant term
α,βRoots in ℂ

When to use this

ax²+bx+c=0, a≠0; roots counted with multiplicity.