The quadratic formula
x = − b ± b 2 − 4 a c 2 a {\displaystyle x\;=\;{\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}}
can be used to find the solutions (roots) to a quadratic equation a x 2 + b c + c = 0. {\displaystyle ax^{2}+bc+c\;=\;0.}
