First we need to complete the square to get the coordinates of the turning point. \(y = {x^2} + 2x + 3\) \(y = {(x + 1)^2} - 1 + 3\) \(y = {(x + 1)^2} + 2\) Therefore ...
Quadratic equations Solving simple quadratic equations Solving quadratics by factorising when a ≠1 - Higher Solving by completing the square - Higher Solving by quadratic formula - Higher Here are ...
This jingle has helped generations of algebra students recall the quadratic formula that solves every equation of the form $latex ax^2+bx+c=0$. The formula is as ...
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