The quadratic formula can be used to solve quadratic equations, ax2+bx+c=0.ax^2+bx+c=0.ax2+bx+c=0. x=-b±b2−4ac2a x=\dfrac{\text{-} {\color{#009600}{b}} \pm\sqrt{{\color{#009600}{b}}^2-4{\color{#0000FF}{a}}{\color{#FF0000}{c}}}}{2{\color{#0000FF}{a}}} x=2a-b±b2−4ac Here, aaa is the coefficient of the x2x^2x2-term, bbb is the coefficient of the xxx-term, and ccc is the constant.