SOLUTION: if ax2+bx+c=0 Prove x=(-b+-SQROOT(b^2-4ac)/(2a)

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Question 307992: if ax2+bx+c=0
Prove x=(-b+-SQROOT(b^2-4ac)/(2a)
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
The solution to this problem is posted on my website. To find my website, click on my tutor name "Rapaljer" anywhere in algebra.com. From my Homepage, look for the link near the top of the page "Basic, Intermediate, and College Algebra: One Step at a Time." Select "Intermediate Algebra", then "Chapter 4". Click on "Section 4.03 Quadratic Formula", and scroll to the last page before all the answers are given. This is the proof (derivation!) of the Quadratic Formula!!

While you are there, from my Homepage, please check out my "Joke Page"--all safe for the little ears in your family!!

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus