Quadratic formula

Gives the solutions of a quadratic equation ax^2 + bx + c = 0 with a nonzero leading coefficient a. It is used to find the roots of any quadratic polynomial equation.

x = \frac{- b \pm b ^{2} - 4 a c}{2 a}

x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}

What the symbols mean

$x$	the unknown root(s) of the equation
$a$	coefficient of x^2, with a \ne 0
$b$	coefficient of x
$c$	constant term

About this formula

FieldMathematics
TopicAlgebra
LevelHigh school
Also calledquadratic equation formula, quadratic solution formula, solve quadratic equation, roots of quadratic equation, quadratic roots formula
SourceWikidata Q15909572

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What the symbols mean

About this formula

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