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If (x - y) = and (x + y) = , what is the value of x2 - y2?

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Retired Moderator
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Joined: 07 Jun 2014
Posts: 4803
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
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Kudos [?]: 2915 [0], given: 394

If (x - y) = and (x + y) = , what is the value of x2 - y2? [#permalink] New post 19 May 2018, 15:08
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Question Stats:

100% (00:01) correct 0% (00:00) wrong based on 4 sessions
If \((x - y) = \sqrt{12}\) and \((x + y) =\sqrt{3}\) , what is the value of \(x^2 - y^2\)?

(A) 3
(B) 6
(C) 9
(D) 36
(E) It cannot be determined from the information given.
[Reveal] Spoiler: OA

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Joined: 26 Jan 2018
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GRE 1: Q165 V156
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Kudos [?]: 132 [0], given: 3

Re: If (x - y) = and (x + y) = , what is the value of x2 - y2? [#permalink] New post 21 May 2018, 21:27
Unless the value of fractions are known, we cannot answer this question. Please correct.
Retired Moderator
User avatar
Joined: 07 Jun 2014
Posts: 4803
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 171

Kudos [?]: 2915 [0], given: 394

Re: If (x - y) = and (x + y) = , what is the value of x2 - y2? [#permalink] New post 22 May 2018, 01:15
Expert's post
mohan514 wrote:
Unless the value of fractions are known, we cannot answer this question. Please correct.


Fixed, Thanks
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Re: If (x - y) = and (x + y) = , what is the value of x2 - y2?   [#permalink] 22 May 2018, 01:15
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If (x - y) = and (x + y) = , what is the value of x2 - y2?

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