I missed ChiKat's birthday! I hope it was a wonderful day.
Never goes smooth. How come it never goes smooth?
Mal ,'Safe'
Spike's Bitches 43: Who am I kidding? I love to brag.
[NAFDA] Spike-centric discussion. Lusty, lewd (only occasionally crude), risqué (and frisqué), bawdy (Oh, lawdy!), flirty ('cuz we're purty), raunchy talk inside. Caveat lector.
Laura - Nov 15, 2008 9:49:17 am PST #1385 of 10000
Our wings are not tired.
Hil R. - Nov 15, 2008 9:49:45 am PST #1386 of 10000
Sometimes I think I might just move up to Vermont, open a bookstore or a vegan restaurant. Adam Schlesinger, z''l
Laura, make that into x^2 - 2x - 3 = 0, and then factor the left side to get (x-3)(x+1)=0, so x=3 or x=-1.
Shir - Nov 15, 2008 9:57:09 am PST #1387 of 10000
"And that's why God Almighty gave us fire insurance and the public defender".
Oh, happy belated birthday, ChiKat!
{Hil}
Gadget_Girl - Nov 15, 2008 9:58:05 am PST #1388 of 10000
Just call me "Siouxsie Shunshine".
Happy Birthday to Iris!
Laura - Nov 15, 2008 10:03:18 am PST #1389 of 10000
Our wings are not tired.
Thanks, Hil, but still confused. I can see how you factored it, but I don't see how that gets closer to the answer of x=3. Is it just that at some point it is ok to just see that 3 works? I'd type the whole original problem, but that would make me crazy on a keyboard. We were at the x² - 2x = 3 point of simplifying when he jumped to x=3. Is that a reasonable jump?
Also, worship your mathy brain.
Hil R. - Nov 15, 2008 10:05:25 am PST #1390 of 10000
Sometimes I think I might just move up to Vermont, open a bookstore or a vegan restaurant. Adam Schlesinger, z''l
You can jump to x=3 and x=-1 when you get it factored into the linear factors. Once you have (x-3)(x+1)=0, you know that either x-3=0 or x+1=0 (since if the product of two things is 0, then one of the factors must be 0), and so then solve those for x=3 or x=-1.
Laura - Nov 15, 2008 10:05:41 am PST #1391 of 10000
Our wings are not tired.
Oh, the practice test is on line. The original problem is No.1 here [link]
Laura - Nov 15, 2008 10:06:58 am PST #1392 of 10000
Our wings are not tired.
Ah! I understand that. Now I can explain it to him. Thanks.
Barb - Nov 15, 2008 10:08:58 am PST #1393 of 10000
“Not dead yet!”
I flunked Geometry.
I'm okay with that.
Laura - Nov 15, 2008 10:11:53 am PST #1394 of 10000
Our wings are not tired.
I only took Algebra and Geometry then took business type math in college. Statistics and Quantitative methods. DH took Calculus and Trigonometry in college and tutored, but 20 years of not thinking about it leaves him just as clueless as me. At least I do enjoy the process of learning it so I can help him. But seriously, math hard.