Mathematics Homework Solutions
Problem
#10916

Quadratic Equation : Proof by Completing the Square

1. Prove the Quadratic Formula by completing the square on ax^2+bx+c=0
2. A picture that is 14 in by 20 in is to have an even border. If the area of the picture and the border is 352 in^2, how wide will the border be?  


Solution Summary

The quadratic formula is proven by completing the square. A border of a picture is calculated using a quadratic equation.

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