The three solutions of the equation f (x) = 0 are - 4, 8, and 11. Therefore, the three solutions of the equation f (2 x) = 0 are
(A) - 2, 4, and 11/2
(B) - 8, 16 and 22
(C) - 4, 8, and 11
(D) 2, 19/2 and 7/2
(E) -6, 17/2, and 11
Target Test Prep is 20% off right now!
Use code FLASH20
Available with Beat the GMAT members only code
MORE DETAILS
the three solutions
This topic has expert replies
-
sanju09
- GMAT Instructor
- Posts: 3650
- Joined: Wed Jan 21, 2009 4:27 am
- Location: India
- Thanked: 267 times
- Followed by:80 members
- GMAT Score:760
The mind is everything. What you think you become. -Lord Buddha
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
-
liferocks
- Legendary Member
- Posts: 576
- Joined: Sat Mar 13, 2010 8:31 pm
- Thanked: 97 times
- Followed by:1 members
three solutions of the equation f (x) = 0 are - 4, 8, and 11 we can say
f(x)=(x+4)(x-8)(x-11)P(X)..where P(X) is a polynomial of x
so f(2x)=2^3(x+2)(x-4)(x-11/2)P(2X)
So three solutions of f(2x) is [spoiler]2, 4, and 11/2 [/spoiler]
Ans option A
f(x)=(x+4)(x-8)(x-11)P(X)..where P(X) is a polynomial of x
so f(2x)=2^3(x+2)(x-4)(x-11/2)P(2X)
So three solutions of f(2x) is [spoiler]2, 4, and 11/2 [/spoiler]
Ans option A
"If you don't know where you are going, any road will get you there."
Lewis Carroll
Lewis Carroll
