SOLUTION: Show how to derive the quadratic formula from a basic quadratic equation {{{ ax^2+bx+c=0 }}}.

Question 1046435: Show how to derive the quadratic formula from a basic quadratic equation .
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Your textbook should show this. The method will use Completing The Square.

Additionally, learn from these:

Completing the Square to Solve a Quadratic Equation, https://www.algebra.com/my/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev

Video showing how to change a general form quadratic equation into standard form
Answer by ikleyn(52778)   (Show Source): You can put this solution on YOUR website!
.
See the lesson
    - PROOF of quadratic formula by completing the square
in this site.

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