BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Reverse factoring

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 42
Joined: Thu Sep 11, 2008 11:07 pm
Location: California
Thanked: 3 times

Reverse factoring

by cmr209 » Thu Sep 03, 2009 12:52 am
In simplifying I'm unsure of when to perform reverse factoring.

a^2+a(2+a)-2

a^2+2a+a^2-2

2a^2+2a-2

2(a^2+a-1)

Please advise.
Top
Source: — Problem Solving |
User avatar
Site Admin
Posts: 2567
Joined: Thu Jan 01, 2009 10:05 am
Thanked: 712 times
Followed by:550 members
GMAT Score:770

by DanaJ » Thu Sep 03, 2009 5:01 am
Actually I don't see any other way of doing this one. This might not be the case for some other quadratics:

a^2 + 3a + 2 =
a^2 + a + 2a + 2 =
a(a + 1) + 2(a + 1) =
(a + 1)(a + 2)
Top
Post new topic Post Reply
• Page 1 of 1