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how to derive a quadratic formula. The discriminant in the Quadratic Formula is b2 4 ac. Transpose the quantity c a to the right side of the equation.
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The formula can be used to solve any quadratic equation and is especially useful for those that are not easily solved by using any other method ie by factoring or completing the square. Y ax 2 bx c. Factor the left side and combine the right side.
This was around 20 years ago and I cant even remember the tutors name.
The derivation of this formula can be outlined as follows. We know that a quadratic equation will be in the form. This is done by completing the square for the generic quadratic equation ax2 bx c 0. Divide both sides of the equation ax2 bx c 0 by a.
