Monday, December 15, 2008

help, i'm stuck in algebra and i can't get out!

The following is an email sent to my sister, who I have already called four times this morning, once at 4:30 am her time (sorry Becky!!) It's not my fault she lives in Colorado and happens to be a math tutor. She walked us through the following equations a couple of times, and she did such a good job that we thought we 'had' it! (When I say 'we' I mean Tawny and I). But we still didn't get the right answer, I think our answers are pretty good, but I guess they have to be all the way right...
By the way the funky Os are supposed to be square root symbols, I guess people don't blog enough about math to need those...

"Step by step:
Please give the standard form of a function with rational coefficients and the given zeros
Zeros: Ö3, 1-Ö5
What we’ve been doing-
(3)(x+Ö3) (x-(1-Ö5)) (x+(1-Ö5))
x2+x-5-x+5-1+5 x2+4
X2 +3-3-3 x2-3

we’re pretty much screwed up and desperately need your help!

we also don’t know what to do on the : 2, 2-i"

Now you may be wondering why I'm so into algebra all of a sudden. Tawny has finals this week and two algebra tests, one today. I had her skip school and told her we'd work on these problems until she felt confident enough to take the test. We did get all but 4 done, and that took us from 7:30 am to 5:30 pm, with a 1 1/2 hour break in there where I took a nap with Enoch and Danni.
So if anyone can help with these, or the Binomial Theorem, you would be my hero!

3 comments:

Lindsay said...

I wish I could help, but I accidentally happened to master the art of weaseling my way out of doing math. Sometime I'll have to tell you the story of how I managed to get two college degrees without taking a single math class. Good luck, though!

Wendy said...

I'm sure all of that used to be familiar to my brain, but no longer! It is like I'm reading a foreign language. Sorry....no help here!

julia said...

i'm with lindsay - i got a high enough ACT in math that I didn't take any in college for my degree. Don't ask me how that happened. there has to be some engineer guy in the ward that loves this kind of stuff. unfortunately, he's probably not reading blogs all day.

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