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07-03-09, 10:29 AM
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#1 (permalink)
| | 250+ Club
Join Date: Jul 2006 Location: hillbilly desert rat
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| Elemenrty Algebra. killin me
Completing the square to solve a Quadratic Equation
Problem: X2 +4x = -1
X2 +4x +4 = -1+4
it is X squared BTW>>
Where does the 4 come from?
I am trying to get a jump on this crap cause
MATH SUCKS
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Last edited by decavo; 07-03-09 at 10:36 AM.
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07-03-09, 10:32 AM
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#2 (permalink)
| | High Desert Hillbilly
Join Date: Apr 2007 Location: Knee deep in meteor sh**
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| take your shoes off
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07-03-09, 10:33 AM
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#3 (permalink)
| | High Desert Hillbilly
Join Date: Apr 2007 Location: Knee deep in meteor sh**
Posts: 551
| Call Corn.
He'll help you out and then laugh at you
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07-03-09, 10:34 AM
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#4 (permalink)
| | High Desert Hillbilly
Join Date: Apr 2007 Location: Knee deep in meteor sh**
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| you might want to take a basic spelling class as well
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07-03-09, 10:34 AM
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#5 (permalink)
| | 250+ Club
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| Maybe I should do that... I never had this in school I was too busy cutting class chasing sluts...
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91 running 33 toyo mt's hillbilly roof rack,air lockers,Tube bumper,breaking stuff too..
86 4runner stock so far..
custom dog tags for sale GI style or for pets $5 includes shipping
I don't give a damn for a man that can only spell a word one way.
decavo's custom jewelry ,vegan soaps, lip balm, lotions all natural products
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07-03-09, 10:35 AM
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#6 (permalink)
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| Quote:
Originally Posted by bogus one  you might want to take a basic spelling class as well | You should see how the teachers spell. 
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91 running 33 toyo mt's hillbilly roof rack,air lockers,Tube bumper,breaking stuff too..
86 4runner stock so far..
custom dog tags for sale GI style or for pets $5 includes shipping
I don't give a damn for a man that can only spell a word one way.
decavo's custom jewelry ,vegan soaps, lip balm, lotions all natural products
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07-03-09, 10:36 AM
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#7 (permalink)
| | High Desert Hillbilly
Join Date: Apr 2007 Location: Knee deep in meteor sh**
Posts: 551
| Quote:
Originally Posted by decavo You should see how the teachers spell. | yeah, no kidding.
we redlined one of Corn's papers from school and sent it to the principal.
didn't get a warm response
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'65 FJ-40 - Father/Son project in boxes.
'79 Pig - Parted-out years ago (WHY??!!)
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07-03-09, 10:36 AM
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#8 (permalink)
| | Site Addict
Join Date: Jan 2008 Location: Birmingham, Alabama
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| Quote:
Originally Posted by decavo Completing the square to solve a Quadratic Equation
Problem: X2 +4x = -1
X2 +4x +4 = -1+4
Where does the 4 come from?
I am trying to get a jump on this crap cause
MATH SUCKS | Are you telling me that you have a math problem that looks like this:
X(sq) + 4X = -1
X(sq) + 4X + 4 = -1 + 4
And you have to solve for X?
Since the 4 is on both sides of the equation, then it is meaningless. I have no idea where the 4 came from. It doesn't make any sense. You at least know that X has to be a negative number, because the result is negative.
Anyway, repost the equation in a way that makes sense, because I cannot really tell what the equation you are trying to solve is from how you wrote it. I don't know if X2 is "X squared" and if 4 [lower case X] is different from 4 [upper case X].
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07-03-09, 10:38 AM
| | RockerRash |
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07-03-09, 10:39 AM
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#9 (permalink)
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| X(sq) you cant make the little letters using mud and it does not translate over from word.
I fixed the first post so it would make better sense to everyone.
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91 running 33 toyo mt's hillbilly roof rack,air lockers,Tube bumper,breaking stuff too..
86 4runner stock so far..
custom dog tags for sale GI style or for pets $5 includes shipping
I don't give a damn for a man that can only spell a word one way.
decavo's custom jewelry ,vegan soaps, lip balm, lotions all natural products
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07-03-09, 10:41 AM
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#10 (permalink)
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| Quote:
Originally Posted by RockerRash They just added 4 to both sides of the eqn so that you can take the square root of both sides easily.
x=(3^.5) -2
In other words, x = radical 3 minus 2. |  why use 4 ? that is my question. The problem is solved for me as an example. SO where did the 4 come from?
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91 running 33 toyo mt's hillbilly roof rack,air lockers,Tube bumper,breaking stuff too..
86 4runner stock so far..
custom dog tags for sale GI style or for pets $5 includes shipping
I don't give a damn for a man that can only spell a word one way.
decavo's custom jewelry ,vegan soaps, lip balm, lotions all natural products
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07-03-09, 10:42 AM
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#11 (permalink)
| | High Desert Hillbilly
Join Date: Apr 2007 Location: Knee deep in meteor sh**
Posts: 551
| Quote:
Originally Posted by decavo SO where did the 4 come from? |
It was following the 3? 
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07-03-09, 10:43 AM
| | RockerRash |
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07-03-09, 10:44 AM
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#12 (permalink)
| | High Desert Hillbilly
Join Date: Apr 2007 Location: Knee deep in meteor sh**
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| Quote:
Originally Posted by RockerRash Because you can factor x^2 +4x +4 into (x+2)(x+2) or (x+2)^2 and then take the sq root of both sides of the eqn. |
will you stop with the logic and just punch him in the balls already?
sheesh..............
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'78 Pig with some gadgets, less rust & rock rash.
'65 FJ-40 - Father/Son project in boxes.
'79 Pig - Parted-out years ago (WHY??!!)
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07-03-09, 10:44 AM
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#13 (permalink)
| | Forum Lifer
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07-03-09, 10:44 AM
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#14 (permalink)
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| Quote:
Originally Posted by decavo why use 4 ? that is my question. The problem is solved for me as an example. SO where did the 4 come from? | RockerRash edited his post to explain it better.
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07-03-09, 10:45 AM
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#15 (permalink)
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07-03-09, 10:46 AM
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#16 (permalink)
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07-03-09, 10:47 AM
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#17 (permalink)
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| Quote:
Originally Posted by RockerRash Because you can factor x^2 +4x +4 into (x+2)(x+2) or (x+2)^2 and then take the sq root of both sides of the eqn. | where does the + 4 come from?
__________________
91 running 33 toyo mt's hillbilly roof rack,air lockers,Tube bumper,breaking stuff too..
86 4runner stock so far..
custom dog tags for sale GI style or for pets $5 includes shipping
I don't give a damn for a man that can only spell a word one way.
decavo's custom jewelry ,vegan soaps, lip balm, lotions all natural products
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07-03-09, 10:48 AM
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#18 (permalink)
| | Forum Lifer
Join Date: Feb 2006
Posts: 10,044
| check my last link it will show you what do to when factoring...switching side whatever Quote:
Originally Posted by decavo where does the + 4 come from? | | |
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07-03-09, 11:01 AM
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#19 (permalink)
| | 250+ Club
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| Cool I am reading already
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91 running 33 toyo mt's hillbilly roof rack,air lockers,Tube bumper,breaking stuff too..
86 4runner stock so far..
custom dog tags for sale GI style or for pets $5 includes shipping
I don't give a damn for a man that can only spell a word one way.
decavo's custom jewelry ,vegan soaps, lip balm, lotions all natural products
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07-03-09, 11:01 AM
| | RockerRash |
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07-03-09, 11:06 AM
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#20 (permalink)
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| x = -0.26794919243112270647255365849413 | |
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bogus one
