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If xy≠0 and x^2*y^2-xy=6, which of the following could be y [#permalink]
 16 Jan 2012, 11:26
Question Stats:
40% (01:54) correct
60% (01:27) wrong based on 0 sessions
if xy not equal 0 and x^2*y^2 -xy = 6, which of the following could be y in terms of x? I. 1/2x II.-2/x III. 3/x a. I only b. II only C. I and II D. I and III E. II and III
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Re: if xy not equal 0 and x^2*y^2 -xy = 6 [#permalink]
16 Jan 2012, 12:46
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Manager
Status: MBA Aspirant
Joined: 12 Jun 2010
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Re: If xy≠0 and x^2*y^2-xy=6, which of the following could be y [#permalink]
17 Jan 2012, 03:51
Ans is E. Simply put xy = a and solve the equation to get 2 values of xy
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Re: If xy≠0 and x^2*y^2-xy=6, which of the following could be y
[#permalink]
17 Jan 2012, 03:51
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