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The quadratic formula.

The quadratic equation has two solutions. If the equation is rearranged to zero, there will be three constants and with the help of the following formula substituting the three constants the solutions can be worked out.

Proof

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The quadratic equation has two solutions. If the equation is rearranged to zero, there will be three constants and with the help of the following formula substituting the three constants the solutions can be worked out.


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