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2x^2-5x=-2
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16 Aug 2021, 14:43
16 Aug 2021, 14:43
Expert Reply
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Question Stats:
85% (01:20) correct
14% (01:55) wrong based on 7 sessions
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\(2x^2-5x=-2\)
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
x |
1 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: 2x^2-5x=-2
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17 Aug 2021, 07:02
17 Aug 2021, 07:02
1
Carcass wrote:
\(2x^2-5x=-2\)
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
x |
1 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
\(2x^2-5x=-2\)
\(2x^2-5x + 2=0\)
\((2x-1)(x-2)=0\)
So, EITHER \(2x-1=0\), which means \(x = 0.5\), in which case Quantity B is greater.
OR \(x-2=0\), which means \(x = 2\), in which case Quantity A is greater.
Answer: D
gmatclubot
Re: 2x^2-5x=-2 [#permalink]
17 Aug 2021, 07:02
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