Find the least integral value of 'k' for which the equation : Quant Question Archive [LOCKED]
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 17 Jan 2017, 10:28

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Find the least integral value of 'k' for which the equation

Author Message
Senior Manager
Joined: 30 Aug 2003
Posts: 329
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 18 [0], given: 0

Find the least integral value of 'k' for which the equation [#permalink]

### Show Tags

30 Jan 2004, 10:52
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Find the least integral value of 'k' for which the equation
9x^2 + 6(k+2)x + (-8 + k^2) = 0 has two different real roots.

a.-4
b.0
c.-2
d.1
e.
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

Director
Joined: 03 Jul 2003
Posts: 652
Followers: 3

Kudos [?]: 91 [0], given: 0

### Show Tags

30 Jan 2004, 11:14
I choose E

b^2-4AC must not be zero other wise the roots are equal.
For K = -3 the roots are equal. But that is not one of the
answer. So pick a least number and that is -4, choice A

Where did you get these damn questions?
Manager
Joined: 25 Jan 2004
Posts: 92
Location: China
Followers: 1

Kudos [?]: 2 [0], given: 0

### Show Tags

30 Jan 2004, 16:21
b^2 - 4ac > 0

36(k+2)^2 - 36(-8+k^2) > 0
4k+12 > 0
k > -3

Senior Manager
Joined: 30 Aug 2003
Posts: 329
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 18 [0], given: 0

### Show Tags

30 Jan 2004, 16:36
Zhung Gazi

_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

30 Jan 2004, 16:36
Display posts from previous: Sort by