WyzAnt.comcombining like terms (subtracting)
(3n²-4n+1)-(8n²-4n+17)
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1 Answer
-5n2-16
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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
- Travis A. 9/23/2012