Samantha D.

asked • 09/23/12

(3n²-4n+1)-(8n²-4n+17)

combining like terms (subtracting)

1 Expert Answer

By:

Travis A. answered • 09/23/12

Tutor
5 (3)

Easy-to-Understand Math and Physics Tutor

See tutors like this
See tutors like this

-5n2-16

Upvote • 1 Downvote
More
Report

Travis A.

First you distribute the minus sign into the terms in the second set of parenthesis:

3n2-4n+1-8n2+4n-17

Then you group the n's together by power:

3n2-8n2-4n+4n+1-17

Then you combine the terms for each:

(3-8)n2+(-4+4)n+(1-17)

Once you do the addition/subtraction for each term you end up with the answer:

-5n2-16

Report

09/23/12

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.