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• Nov 6th 2009, 08:59 PM
realistic
http://img11.imageshack.us/img11/6299/formd.jpgi got this far but now this is wrong answer any help would be great (Bow)
• Nov 6th 2009, 09:07 PM
Debsta
Your mistake is in your fourth line. Should be -2 +/- 2 sqt(7) on top.
• Nov 6th 2009, 09:13 PM
realistic
Quote:

Originally Posted by Debsta
Your mistake is in your fourth line. Should be -2 +/- 2 sqt(7) on top.

is this what you mean
http://img18.imageshack.us/img18/214/form2f.jpg
• Nov 6th 2009, 09:15 PM
Debsta
Yep!
• Nov 6th 2009, 09:17 PM
Bacterius
Then you can factorize $2$ and simplify.
• Nov 6th 2009, 09:19 PM
Debsta
1
• Nov 6th 2009, 09:21 PM
Bacterius
2
• Nov 6th 2009, 09:24 PM
Debsta
Hey Bacterius,
For future reference, how do you self-delete things that you wish you hadn't posted. Hasn't happened to me yet, but I'm sure it will.
• Nov 6th 2009, 09:24 PM
realistic
Quote:

Originally Posted by Debsta
What the? 7^2 = 49 not 28 ????

2^2-4x(-2)x3 =28
• Nov 6th 2009, 09:26 PM
realistic
Quote:

Originally Posted by Debsta
What the? 7^2 = 49 not 28 ????

i dont get how you get this can u please explain (Bow)

and to delete a comment you select edit then delete (not sure if that was sarcasm) |:)
• Nov 6th 2009, 09:27 PM
Debsta
Yep. You're right... I was responding to Bacterius. All you have to do now is factorise out the 2 and cancel and you're done.
• Nov 6th 2009, 09:28 PM
Bacterius
7
• Nov 6th 2009, 09:32 PM
realistic
thats the answer but i cant see how cancelling out gets that (Thinking)http://img41.imageshack.us/img41/679/form3.jpg

where did the positive 2 go?
• Nov 6th 2009, 09:33 PM
realistic
Quote:

Originally Posted by Bacterius
Forget this Realistic, it's my stupidity. You got it right.

Debsta, I don't know, I have some quickly-posted things I want to clear but can't find the delete command ... I'll have to look in the FAQ.

EDIT : I've seen you can't delete your threads because of various reasons. I guess the same goes for posts ... what if I really want to remove the evidence ? :)

dont worry i really appreciate all the help (Bow)
• Nov 6th 2009, 09:33 PM
Debsta
Thanks, Realistic. I successfully deleted my earlier comment.
Wasn't sarcasm before - a serious question :)