Quadratic equations are called quadratic because quadratus is Latin for "square"; in the leading term the variable is squared.
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A parabola.
Quadratic equation
Write an algorithm to find the root of quadratic equation
It is used to solve quadratic equations that cannot be factored. Usually you would factor a quadratic equation, identify the critical values and solve, but when you cannot factor you utilize the quadratic equation.
Simply learn and use the quadratic equation formula.