The quadratic formula can be derived by applying the method of completing the square analyze each step carefully and complete the table supplying as shown below reason why.
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is actually derived using the steps involved in completing the square. It stems from the fact that any quadratic function or equation of the form y = a{x^2} + bx + cy=ax
2
+bx+c can be solved for its roots. The “roots” of the quadratic equation are the points at which the graph of a quadratic function (the graph is called the parabola) hits, crosses or touches the x-axis known as the xx-intercepts.
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