A quadratic equation looks like bow.
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Quadratic equations are called quadratic because quadratus is Latin for "square"; in the leading term the variable is squared.
Quadratic equation
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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.
There are several methods for solving quadratic equations, although some apply only to specific quadratic equations of specific forms. The methods include:Use of the quadratic formulaCompleting the SquareFactoringIterative methodsguessing