"n^2 and 2n^2 is an increase by a factor of 4": how??  TOPIC_SOLVED

Simplificatation, evaluation, linear equations, linear graphs, linear inequalities, basic word problems, etc.

"n^2 and 2n^2 is an increase by a factor of 4": how??

Postby ScripterKitty on Mon Oct 08, 2012 11:55 pm

In one of my math problems the answer stated that going from n^2 to 2n^2 is an increase by a factor of 4. I dont understand how this is. Can someone explain?
ScripterKitty
 
Posts: 5
Joined: Wed Oct 03, 2012 9:24 pm

Sponsor

Sponsor
 

Re: "n^2 and 2n^2 is an increase by a factor of 4": how??  TOPIC_SOLVED

Postby nona.m.nona on Tue Oct 09, 2012 11:26 am

ScripterKitty wrote:In one of my math problems the answer stated that going from n^2 to 2n^2 is an increase by a factor of 4. I dont understand how this is. Can someone explain?

If the expressions are as posted -- n2 and 2n2 -- then the increase is not a factor of 4, but a factor of 2. If, on the other hand, the second expression is (2n)2, then the expression simplifies to 4n2, which is an increase by a factor of 4.
nona.m.nona
 
Posts: 248
Joined: Sun Dec 14, 2008 11:07 pm

Re: "n^2 and 2n^2 is an increase by a factor of 4": how??

Postby ScripterKitty on Tue Oct 09, 2012 2:19 pm

Thanks alot. I thought about this last night and came to the same conclusion that I was "assuming" that the equation was like this 2(n^2) vs (2n)^2. Thanks!
ScripterKitty
 
Posts: 5
Joined: Wed Oct 03, 2012 9:24 pm


Return to Beginning Algebra