Universe Sandbox

General Category => Everything Else => Topic started by: atomic7732 on February 13, 2013, 02:24:50 PM

Title: quadratic equation got you down?
Post by: atomic7732 on February 13, 2013, 02:24:50 PM

cant be factored?
last number positive?

x^2 + 8x + 65

divide b by -2

-4

square it and subtract from the last number...

49

wow it's a square!

take it's root

+/-7

tack on an i

-4 +/- 7i

magic, QED, 42

atomic, signing off

Title: Re: quadratic equation got you down?
Post by: Darvince on February 13, 2013, 04:30:30 PM

seems legit

-4-7i