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|x^3+2| |x|
[#permalink]
30 Dec 2021, 04:18
30 Dec 2021, 04:18
1
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Question Stats:
57% (00:47) correct
42% (01:02) wrong based on 45 sessions
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Quantity A |
Quantity B |
\(|x^3+2|\) |
\(|x|\) |
The quantity in Column A is greater
The quantity in Column B is greater
The two quantities are equal
The relationship cannot be determined from the information given
My question:
is there a way that I can discover that these there is an exception for the absolute values when in QC other than choosing numbers?
Re: |x^3+2| |x|
[#permalink]
30 Dec 2021, 05:17
30 Dec 2021, 05:17
1
Expert Reply
You can pick numers or work conceptually
I am disappointed when the students of this board do not see what we do have or what I write with so many efforts
Here all is explained https://gre.myprepclub.com/forum/gre-math- ... 25236.html
x^3+2 is two units apart from X
x instead is the distance of x from the origin
We do not know the exact position on the number line of x^3+2
could be x^3+2 or -2 +x^3
Turns out, X also variates in its distance from the origin
So the answer is D
PLEASE: add the 4 answer usual choices. You always forget. Moreover, the source is MGRE or Others ?? which one ?
I am disappointed when the students of this board do not see what we do have or what I write with so many efforts
Here all is explained https://gre.myprepclub.com/forum/gre-math- ... 25236.html
x^3+2 is two units apart from X
x instead is the distance of x from the origin
We do not know the exact position on the number line of x^3+2
could be x^3+2 or -2 +x^3
Turns out, X also variates in its distance from the origin
So the answer is D
PLEASE: add the 4 answer usual choices. You always forget. Moreover, the source is MGRE or Others ?? which one ?
Re: |x^3+2| |x|
[#permalink]
30 Dec 2021, 12:40
30 Dec 2021, 12:40
1
Carcass wrote:
You can pick numers or work conceptually
I am disappointed when the students of this board do not see what we do have or what I write with so many efforts
Here all is explained https://gre.myprepclub.com/forum/gre-math- ... 25236.html
x^3+2 is two units apart from X
x instead is the distance of x from the origin
We do not know the exact position on the number line of x^3+2
could be x^3+2 or -2 +x^3
Turns out, X also variates in its distance from the origin
So the answer is D
PLEASE: add the 4 answer usual choices. You always forget. Moreover, the source is MGRE or Others ?? which one ?
I am disappointed when the students of this board do not see what we do have or what I write with so many efforts
Here all is explained https://gre.myprepclub.com/forum/gre-math- ... 25236.html
x^3+2 is two units apart from X
x instead is the distance of x from the origin
We do not know the exact position on the number line of x^3+2
could be x^3+2 or -2 +x^3
Turns out, X also variates in its distance from the origin
So the answer is D
PLEASE: add the 4 answer usual choices. You always forget. Moreover, the source is MGRE or Others ?? which one ?
Thanks for your answer.
I read what you write in the forum and the explanation but sometimes I can't relate the concept with the questions.
It seems that I am doing something wrong because I am making sure that I am including the choices and the right answer. Sorry for that.
