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If (x - y) = and (x + y) = , what is the value of x2 - y2?
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sandy
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Joined: 07 Jun 2014
Posts: 4804
GRE 1: Q167 V156
WE:Business Development (Energy and Utilities)
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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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.
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mohan514
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GRE 1: Q165 V156
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.
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sandy
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Joined: 07 Jun 2014
Posts: 4804
GRE 1: Q167 V156
WE:Business Development (Energy and Utilities)
Re: If (x - y) = and (x + y) = , what is the value of x2 - y2? [#permalink] New post  22 May 2018, 01:15
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mohan514 wrote:
Unless the value of fractions are known, we cannot answer this question. Please correct.


Fixed, Thanks
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