GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 21 Oct 2019, 16:56

### GMAT 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

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# If a and b are constants, what is one solution of the equation (x + a)

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58396
If a and b are constants, what is one solution of the equation (x + a)  [#permalink]

### Show Tags

29 Mar 2016, 03:08
00:00

Difficulty:

35% (medium)

Question Stats:

61% (00:49) correct 39% (01:13) wrong based on 194 sessions

### HideShow timer Statistics

If a and b are constants, what is one solution of the equation (x + a)(x – b) = 0?

(1) a = 4

(2) b = 3

_________________
Manager
Joined: 18 Sep 2014
Posts: 223
Re: If a and b are constants, what is one solution of the equation (x + a)  [#permalink]

### Show Tags

29 Mar 2016, 04:05
1
If a and b are constants, what is one solution of the equation (x + a)(x – b) = 0?

(1) a = 4

(2) b = 3

IMO it should be D.

St(1) says a=4. So if x =-4 (one solution). The said eqn is 0. Sufficient
St(2) says b=3. So if x=3 (one solution). The said eqn is 0. Sufficient.
_________________
Kindly press the Kudos to appreciate my post !!
Intern
Joined: 26 Nov 2015
Posts: 28
Re: If a and b are constants, what is one solution of the equation (x + a)  [#permalink]

### Show Tags

29 Mar 2016, 04:14
Bunuel wrote:
If a and b are constants, what is one solution of the equation (x + a)(x – b) = 0?

(1) a = 4

(2) b = 3

Statement 1
firstly when we know a= 4 then
(x+4)(x-b) = 0, now solution can be x+4= 0 or x-b = 0
x= -4 or x= b, b can be anything from - infinity to + infinity
but we know the one solution x=-4

statement 2
when b= 3
(x+a)(x-3)= 0, now solution can be x= 3 or x=-a, a can be anything from - infinity to + infinity
but we know the one solution is 3

so Option D
_________________
PS : I do mind kudos
Non-Human User
Joined: 09 Sep 2013
Posts: 13382
Re: If a and b are constants, what is one solution of the equation (x + a)  [#permalink]

### Show Tags

23 Oct 2018, 06:50
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Re: If a and b are constants, what is one solution of the equation (x + a)   [#permalink] 23 Oct 2018, 06:50
Display posts from previous: Sort by