Quadratic formula
From Conservapedia
This is an old revision of this page, as edited by PhilipB (Talk | contribs) at 14:25, December 30, 2006. It may differ significantly from current revision.
The quadratic formula is used to simplify the process of solving a quadratic equation. It is in the following form:
In order to be solved using this formula, a quadratic equation must be in the following format:
You simply substitute 
, 
, and 
into the formula.
You can prove that the formula is correct by substituting the formula in place of x in 
and then gradually simplying the rather complicated formula that results, step by step. Eventually, if all the simplication steps are done correctly, it will simply to 0.
