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extraneous solutions

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Extraneous solutions 2015-03-07
From Emily:
I have a question about Extraneous Solutions, Because I was recently researching to figure out on how to determine that a solution is extraneous and many of the answers talked about how if a answer is negative that it should always be extraneous but now I found out that positive solutions can also be considered as extraneous solutions so that is why I am really confused Extraneous Solution's.
I would really appreciate it if you could clearly explain to me how to determine an extraneous solution from a normal solution.
Thanks,
Emily

Answered by Chris Fisher.
Extraneous solutions 2013-10-22
From tom:
i need an equation where x=-2 is the correct answer and x=-3 is an extraneous solution. can you provide me with such an equation??
Answered by Harley Weston.
Extraneous solutions 2013-02-18
From Eileen:
(5x+4)^1/2-3x=0
Answered by Penny Nom.
Extraneous solutions 2010-05-22
From Joe:

Question from Joe, a parent:

w+3    2w
----- - ----- = 1
w2-1   w-1

W2 is = w squared

                            -4
The answer is w= ------
                             3

but have no idea how this was solved. any help is appreciated. Thanks.


Answered by Penny Nom.
Extraneous solutions 2009-09-20
From iyana:
what is an extraneous solution? what must you do to determine whether a extraneous solution?
Answered by Stephen La Rocque and Harley Weston.
Extraneous solutions 2009-06-02
From Ayana:
solve and check for extraneous solutions.

3x+6/ x-4 = x+1/ x-2

x can not = {-2,2}

Answered by Penny Nom.
Extraneous solutions 2008-09-25
From crystal:
/6x+7/=5x+2
Answered by Penny Nom.
Extraneous solutions 2006-01-01
From Liz:

Question: solve and check for extraneous solution

3(w + 1)1/2 = 6


Answered by Penny Nom.
Extraneous solutions 2004-07-28
From Nicole:
When I have a problem like (2x + 3)/5 = (x + 1)/6 and the question asks to check for extraneous solutions, how do you solve that?
Answered by Penny Nom.
Extraneous solutions 2003-01-24
From Paul:

What is an extraneous solution and in what cases do you get one?

How do you know it is extraneous?


Answered by Penny Nom.
 
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