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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
Which of the following equations is NOT equivalent to 4x^2 = y^2 - 9?
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09 Feb 2023, 22:16
09 Feb 2023, 22:16
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Question Stats:
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Which of the following equations is NOT equivalent to \(4x^2 = y^2 - 9\)?
(A) \(4x^2+ 9 = y^2\)
(B) \(4x^2 - y^2 = -9\)
(C) \(4x^2= (y + 3)(y - 3)\)
(D) \(2x = y - 3\)
(E) \(x^2 = \frac{(y^2 - 9)}{4}\)
(A) \(4x^2+ 9 = y^2\)
(B) \(4x^2 - y^2 = -9\)
(C) \(4x^2= (y + 3)(y - 3)\)
(D) \(2x = y - 3\)
(E) \(x^2 = \frac{(y^2 - 9)}{4}\)
Re: Which of the following equations is NOT equivalent to 4x^2 = y^2 - 9?
[#permalink]
10 Feb 2023, 10:07
10 Feb 2023, 10:07
Expert Reply
Asked: Which of the following equations is NOT equivalent to \(4x^2 = y^2 - 9\) ?
(A) \(4x^2+ 9 = y^2\)
Equivalent
(B) \(4x^2 - y^2 = -9\)
Equivalent
(C) \(4x^2= (y + 3)(y - 3)\)
Equivalent
(D) \(2x = y - 3\)
Not equivalent
(E) \(x^2 = \frac{(y^2 - 9)}{4}\)
Equivalent
IMO D
(A) \(4x^2+ 9 = y^2\)
Equivalent
(B) \(4x^2 - y^2 = -9\)
Equivalent
(C) \(4x^2= (y + 3)(y - 3)\)
Equivalent
(D) \(2x = y - 3\)
Not equivalent
(E) \(x^2 = \frac{(y^2 - 9)}{4}\)
Equivalent
IMO D
gmatclubot
Re: Which of the following equations is NOT equivalent to 4x^2 = y^2 - 9? [#permalink]
10 Feb 2023, 10:07
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