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09 Aug 2019, 20:24
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Hi Nums99,
I've posted an explanation for this question here:
https://gmatclub.com/forum/the-product- ... l#p2334197
GMAT assassins aren't born, they're made,
Rich
I've posted an explanation for this question here:
https://gmatclub.com/forum/the-product- ... l#p2334197
GMAT assassins aren't born, they're made,
Rich
Nums99
Joined: 12 Jan 2019
Last visit: 18 Mar 2022
Posts: 88
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Given Kudos: 211
Location: India
Concentration: Finance, Technology
Schools: Rotman '23 Desautels '23 Alberta University
31 Aug 2019, 02:49
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Hi EMPOWERgmatRichC
I am very confused about this one inequality concept even though it is very simple
when they say x^>9
does it mean -3<x<3
or does it mean -3<x>3
please help this concept misunderstanding is leading me to make silly mistakes in easy answers
I am very confused about this one inequality concept even though it is very simple
when they say x^>9
does it mean -3<x<3
or does it mean -3<x>3
please help this concept misunderstanding is leading me to make silly mistakes in easy answers
31 Aug 2019, 14:48
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Hi Nums99,
When you're dealing with a 'squared term', it's likely that you are going to have more than one type of answer.
For example, if X^2 = 16.... then X can be +4 or -4.
In that same way, when you're dealing with a 'squared term' and an inequality, you will likely have more than one 'group' of numbers that fits the inequality.
For example if Y^2 > 9.... then Y can be any number that is GREATER than 3 OR any number that is LESS than -3.
so...
X > 3 or X < -3
Those are two separate groups of numbers though (one is positive numbers, the other is negative numbers), so you would not write that as one 'big' inequality; it's two separate inequalities.
GMAT assassins aren't born, they're made,
Rich
When you're dealing with a 'squared term', it's likely that you are going to have more than one type of answer.
For example, if X^2 = 16.... then X can be +4 or -4.
In that same way, when you're dealing with a 'squared term' and an inequality, you will likely have more than one 'group' of numbers that fits the inequality.
For example if Y^2 > 9.... then Y can be any number that is GREATER than 3 OR any number that is LESS than -3.
so...
X > 3 or X < -3
Those are two separate groups of numbers though (one is positive numbers, the other is negative numbers), so you would not write that as one 'big' inequality; it's two separate inequalities.
GMAT assassins aren't born, they're made,
Rich
