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September 30, 2014

September 30, 2014

Posted by **dani** on Sunday, April 25, 2010 at 9:12am.

4i, -4i

- Algebra -
**Reiny**, Sunday, April 25, 2010 at 9:15amfactors would be

(x-4i)(x+4i)

so x^2 - 16i^2 = 0

x^2 + 16 = 0

or x = ±4i

square both sides

x^2 = 16i^2

x^2 = -16

x^2 + 16 = 0

- Algebra -
**SmsUiKrTHPuwAW**, Wednesday, March 21, 2012 at 4:44pmi liked YAY MATH! the best. it was funny but it also taught me alot, of ourcse i doubt i'll remember any of it in the mornin, but i watched the rest of the magician video and learned how to like multiply square routes or whatever, partially. i didn't really like the like math playground place, i got sorta confused there, but i like the like cool math one. i played this game though called like snorzies, i have no idea how i ended up on it, but that wasn't exactly related to math, but i saw some other things that were useful on the cool math page.

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