If x is not equal to 0

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If x is not equal to 0

by shahfahad » Thu Nov 26, 2015 9:56 am
(x+1/x-1)^2

If x is not equal to 0 and is not equal to 1, and if x is replaced by 1/x everywhere in the expression above, then the resulting expression is equivalent to:

(A) (x+1/x-1)^2
(B) (x-1/x+1)^2
(C) x^2+1/1-x^2
(D) x^2-1/x^2+1
(E) -(x-1/x+1)^2

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by [email protected] » Thu Nov 26, 2015 10:39 am
Hi shahfahad,

There was a series of posts on this question earlier this year; it can be found here.

https://www.beatthegmat.com/if-x-not-equ ... 59914.html

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by Matt@VeritasPrep » Fri Nov 27, 2015 12:14 am
BTW Shahfahad, could you be strict with your formatting in your future algebra posts? I'm able to follow what you mean to type, but there are some difficult ambiguities in some of your expressions that force us to spend a lot of time correcting and assuming. (For instance, (x + 1 / x - 1)² should be ((x+1)/(x-1))².)