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M06-02

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Manager
Manager
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S
Joined: 26 Feb 2018
Posts: 51
Location: India
GMAT 1: 640 Q45 V34
GPA: 3.9
WE: Web Development (Computer Software)
Re M06-02  [#permalink]

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New post 22 Jun 2018, 14:28
I think this is a high-quality question and I agree with explanation.
Intern
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B
Joined: 18 May 2018
Posts: 17
Location: India
Concentration: Marketing, Strategy
Schools: DeGroote'21 (A)
GMAT 1: 730 Q49 V40
Re: M06-02  [#permalink]

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New post 05 Oct 2018, 07:36
Is there an actual GMAT problem (OG / GMAC test) that necessitates this kind of reasoning? Please link me to a question from an official source if possible. Thanks.
Senior Manager
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Status: Gathering chakra
Joined: 05 Feb 2018
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Re: M06-02  [#permalink]

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New post 01 Jul 2019, 11:02
Bunuel how would you solve by taking the conjugate sqrt(A)+sqrt(B) to get rid of sqrt?
I had (x+3)^2 - (y-1)^2 = ?
(3/4 + 3)^2 - (2/5 - 1)^2 = ?
(15/4)^2 - (-3/5)^2 = ?
...break down again into (A-B)(A+B) and I was left with (87/20)(63/20) = ?
Which are choices A) & B).
How do I finish this; at which point would you plug in to check?
Maybe it's a simple question, but my algebra is the worst :(
GMAT Club Bot
Re: M06-02   [#permalink] 01 Jul 2019, 11:02

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M06-02

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