Friday, June 5, 2009

Alternative Quadratic Formulae

You have learned that a quadratic equation can be solved by the quadratic formula
\frac{{ - b \pm \sqrt {b^2  - 4ac} }}{{2a}}
Actually it can also be solved by another similar formula
\frac{{2c}}{{ - b \pm \sqrt {b^2  - 4ac} }}
But try not to use in school exams. Source: forum.one-school.net/viewtopic.php?f=9&t=64
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