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x^2-3x-4=0 & x>0
[#permalink]
03 May 2022, 01:00
03 May 2022, 01:00
Expert Reply
00:00
Question Stats:
56% (00:38) correct
44% (00:35) wrong based on 25 sessions
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\(x^2-3x-4=0\) & \(x>0\)
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 |
3x |
10 |
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
Part of the project: GRE Quantitative Comparison & Problem Solving Challenge
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GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
Re: x^2-3x-4=0 & x>0
[#permalink]
03 May 2022, 10:48
03 May 2022, 10:48
1
x^2−3x−4=0 ----> x^2 - 4x + x - 4 = 0 -----> x(x-4) + 1(x+4) = 0 -----> (x-4)(x+1) = 0 ----> x = -1 or 4, but since x>0, x must be equal to 4
Option A = 3*x = 3*4 = 12
Option B = 10
Option A > B, and the correct ans
Option A = 3*x = 3*4 = 12
Option B = 10
Option A > B, and the correct ans
gmatclubot
Re: x^2-3x-4=0 & x>0 [#permalink]
03 May 2022, 10:48
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