A quadratic equation is a polynomial equation of second degree, meaning the highest exponent of its monomials is $2.$ A quadratic equation can be written in standard form as follows. Here, the leading coefficient $a$ is non-zero, which guarantees that the $x^2\text{-}$term is present. Solving a quadratic equation means finding the zeros of the related quadratic function. Therefore, quadratic equations can have at most two solutions. This type of equation can be solved using several methods, such as graphing and factoring. If the linear coefficient $b$ of a quadratic equation is $0,$ the equation is called a simple quadratic equation and can be written in the following form.