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.
What is the value of (4 + a)(4 – b) when a = 4 and b = –4 ?
[#permalink]
19 Jun 2017, 11:57
19 Jun 2017, 11:57
Expert Reply
00:00
Question Stats:
86% (00:23) correct
13% (00:14) wrong based on 123 sessions
Hide Show timer Statistics
What is the value of (4 + a)(4 – b) when a = 4 and b = –4 ?
A) –64
B) –16
C) 0
D) 16
E) 64
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: What is the value of (4 + a)(4 – b) when a = 4 and b = –4 ?
[#permalink]
20 Jun 2017, 08:21
20 Jun 2017, 08:21
1
Carcass wrote:
What is the value of (4 + a)(4 – b) when a = 4 and b = –4 ?
A) –64
B) –16
C) 0
D) 16
E) 64
Take (4 + a)(4 – b) and replace a with 4, and replace b with -4
We get: (4 + a)(4 – b) = (4 + 4)(4 – -4)
= (8)(8)
= 64
Answer:
Show: ::
E
RELATED VIDEO
gmatclubot
Re: What is the value of (4 + a)(4 – b) when a = 4 and b = –4 ? [#permalink]
20 Jun 2017, 08:21
Moderators:
