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Re: Well I am lost in math

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iguanazor is not online. iguanazor
Joined: 07 Sep 2008
Total Posts: 31462
18 Dec 2011 08:21 PM
I have no idea how to do any of this. Assume √ is "the square root of." I will show the whole radical in parenthesis. ^ signifies superscript, usually to the power of

(√6x + 55) = x


^3(√16x) • ^3(√2x^4)


2(√24) - (√50) + 5(√54) - (√18)


(32a^10b^5)^1/5


x^3 + 2x^2 - 8x = 0 (solve by factoring)


x^4 - 2x^2 - 63 = 0 (solve by making an appropriate substitution)


x^5/4


x + 6(√x-7) = 0


:(


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iguanazor is not online. iguanazor
Joined: 07 Sep 2008
Total Posts: 31462
18 Dec 2011 08:23 PM
If it's a radical in parenthesis like (√6x + 55) that means everything in the parenthesis is part of the "square root of"
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Yoshiboshi3 is not online. Yoshiboshi3
Joined: 12 May 2008
Total Posts: 12757
18 Dec 2011 08:23 PM
hi this has everything to do with roblox
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wingedblueeyes is not online. wingedblueeyes
Joined: 27 Aug 2009
Total Posts: 7577
18 Dec 2011 08:23 PM
And neither do I. I do pre-algebra, in 7th grade.

~Surprise Attack~
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jharmain is not online. jharmain
Joined: 28 Jun 2009
Total Posts: 1901
18 Dec 2011 10:03 PM
x=2
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TheYahoo5 is not online. TheYahoo5
Joined: 27 Nov 2011
Total Posts: 630
18 Dec 2011 10:05 PM
I'm in Pre-school.
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Lance7 is not online. Lance7
Top 25 Poster
Joined: 09 Feb 2008
Total Posts: 59665
18 Dec 2011 10:06 PM
wat r we doing here?
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maximumoblivion13 is not online. maximumoblivion13
Joined: 17 Jul 2009
Total Posts: 3757
18 Dec 2011 10:09 PM
Well I'm in Algebra II

so, what your saying is if there is parenthesis's in a binomial with a square root,
it means you square root everything?

Cuz if so, that is incorrect.

Also,
if you trying to find x and it's in a square root, you get that monomial by itself and then square it.

Example:

√x = 17

so x would equal 17 x 17

Get it?
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Lance7 is not online. Lance7
Top 25 Poster
Joined: 09 Feb 2008
Total Posts: 59665
18 Dec 2011 10:10 PM
(√6x + 55) = x

assuming you're solving for x

for something like this

square both sides

6x+55=x^2

x^2 - 6x - 55 = 0

factor

(x-11)(x+5) = 0

x= 11 and -5

k.

bai
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wordlefan is not online. wordlefan
Joined: 07 May 2011
Total Posts: 2082
18 Dec 2011 10:13 PM
Oh I learned this a few weeks ago... I hated it :P
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maximumoblivion13 is not online. maximumoblivion13
Joined: 17 Jul 2009
Total Posts: 3757
18 Dec 2011 10:15 PM
You got to tell us what you are doing in math.
Like what topic, what subject and if you are graphing it or not.
You can just give us the problem and let us explain it to you.
Because there are numerous ways to solve it, all differently getting a different answer, due to what you are trying to conclude.
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uneekIncendi is not online. uneekIncendi
Joined: 27 May 2011
Total Posts: 9165
18 Dec 2011 10:16 PM
"Wolfram Alpha."
Google it.
Use it.
Love it.
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alexpalad is not online. alexpalad
Joined: 03 Jan 2010
Total Posts: 3
18 Dec 2011 10:17 PM
cool,
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DracoSwordMaster is not online. DracoSwordMaster
Joined: 11 Sep 2006
Total Posts: 6007
18 Dec 2011 10:19 PM
omg brain fart
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WolfTiger is not online. WolfTiger
Joined: 29 Sep 2008
Total Posts: 2856
18 Dec 2011 10:20 PM
Sorry, but you happened to choose my LEIST favorite math problems (that is unless these have anything to do with the quadratic formula, I wouldn't know until I wrote it all down in the correct format on paper).
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maximumoblivion13 is not online. maximumoblivion13
Joined: 17 Jul 2009
Total Posts: 3757
18 Dec 2011 10:24 PM
Quadratic Formula :D
___________
x = -(b) plus or minus √(b)^2 - 4ac
______________________________
2a


YAY!
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caster41 is not online. caster41
Joined: 10 Jan 2010
Total Posts: 1166
18 Dec 2011 10:32 PM
imple. im in advanced math. so i know it. but you are lost with variables it seems like....
get a math tutor.
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WolfTiger is not online. WolfTiger
Joined: 29 Sep 2008
Total Posts: 2856
18 Dec 2011 10:34 PM
My math teacher actually has a song to learn the quadratic formula...to the tune of "row row row your boat" *cringe*
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maximumoblivion13 is not online. maximumoblivion13
Joined: 17 Jul 2009
Total Posts: 3757
18 Dec 2011 10:37 PM
Wait so I missed some variables?
Like what?
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