Search
Ask a question
0

(3n²-4n+1)-(8n²-4n+17)

combining like terms (subtracting)

1 Answer by Expert Tutors

Tutors, sign in to answer this question.
Travis A. | Easy-to-Understand Math and Physics TutorEasy-to-Understand Math and Physics Tuto...
5.0 5.0 (3 lesson ratings) (3)
1

-5n2-16

Comments

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