GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
(x^2+9)(x+9)(x-5)=0
[#permalink]
19 Mar 2021, 06:39
19 Mar 2021, 06:39
Expert Reply
2
Bookmarks
00:00
Question Stats:
67% (01:07) correct
32% (00:26) wrong based on 28 sessions
Hide Show timer Statistics
\((x^2+9)(x+9)(x-5)=0\)
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Quantity A |
Quantity B |
x |
7 |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
(x^2+9)(x+9)(x-5)=0
[#permalink]
19 Mar 2021, 07:37
19 Mar 2021, 07:37
2
\((x^2+9)(x+9)(x-5)\)=0
\((x^2+9)\) can never be 0 so (x+9) or (x-5) or both has to be zero.
For the equation to be zero x will be 5 OR -9
Either value of x is less than 7.
Qt A < Qt B
Answer B
\((x^2+9)\) can never be 0 so (x+9) or (x-5) or both has to be zero.
For the equation to be zero x will be 5 OR -9
Either value of x is less than 7.
Qt A < Qt B
Answer B
Retired Moderator
Joined: 16 Apr 2020
Status:Founder & Quant Trainer
Affiliations: Prepster Education
Posts: 1546
Given Kudos: 172
Location: India
WE:Education (Education)
(x^2+9)(x+9)(x-5)=0
[#permalink]
19 Mar 2021, 07:58
19 Mar 2021, 07:58
1
Carcass wrote:
\((x^2+9)(x+9)(x-5)=0\)
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
x |
7 |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
\((x^2+9)(x+9)(x-5)=0\)
[ \(x^2 + 9\) can never be a zero, because \(x^2 ≠ -9\) ]
Since, we can have either \((x+9) = 0\) or \((x-5) = 0\)
i.e. \(x = -9\) or \(x = 5\)
\(7\) would always be greater than \(5\) or \(-9\)
Hence, option B
