For a quadratic polynomial \boldsymbol{p(x) = ax^2 + bx + c}, if \boldsymbol{\alpha} and \boldsymbol{\beta} are the zeroes, then:
\displaystyle\boldsymbol{\alpha + \beta = -\frac{b}{a}} and \displaystyle\boldsymbol{\alpha \beta = \frac{c}{a}}
where \boldsymbol{\alpha + \beta} represents the sum of zeroes, and \boldsymbol{\alpha \beta} represents the product of zeroes.