It is currently 14 Dec 2019, 16:16

### 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

# x > 1

Author Message
TAGS:
Founder
Joined: 18 Apr 2015
Posts: 9036
Followers: 180

Kudos [?]: 2143 [0], given: 8371

x > 1 [#permalink]  05 Jun 2019, 08:53
Expert's post
00:00

Question Stats:

51% (00:42) correct 48% (00:13) wrong based on 31 sessions
$$x > 1$$

 Quantity A Quantity B $$(x+5)(2x+3)$$ $$(x+3)(2x+5)$$

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.
[Reveal] Spoiler: OA

_________________

Need Practice? 20 Free GRE Quant Tests available for free with 20 Kudos
GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests.

GRE Instructor
Joined: 10 Apr 2015
Posts: 2632
Followers: 96

Kudos [?]: 2850 [0], given: 45

Re: x > 1 [#permalink]  05 Jun 2019, 09:20
Expert's post
Carcass wrote:
$$x > 1$$

 Quantity A Quantity B $$(x+5)(2x+3)$$ $$(x+3)(2x+5)$$

Given:
Quantity A: $$(x+5)(2x+3)$$
Quantity B: $$(x+3)(2x+5)$$

Use the F.O.I.L. method to expand (and simplify) the two quantities:
Quantity A: $$2x^2+13x+15$$
Quantity B: $$2x^2+11x+15$$

From here, we can solve this question using matching operations

Subtract $$2x^2$$from two quantities to get:
Quantity A: $$13x+15$$
Quantity B: $$11x+15$$

Subtract $$15$$ from two quantities to get:
Quantity A: $$13x$$
Quantity B: $$11x$$

Since x is POSITIVE, we can safely divide both quantities by x to get:
Quantity A: $$13$$
Quantity B: $$11$$

RELATED VIDEO FROM MY COURSE

_________________

Brent Hanneson – Creator of greenlighttestprep.com

Re: x > 1   [#permalink] 05 Jun 2019, 09:20
Display posts from previous: Sort by