How do you know whether to factor out a (-n)? If i did: -n(n-5) but if i did: n(-n+5) which one is correct? The answer of my book says -n(n-5) Do I always have to make sure that the n is a positive? 2/24/2014 | Aaron from Middletown, RI | 1 Answer | 0 Votes Mark favorite Subscribe Comment
Both have the same value so are technically correct. But custom dictates that the factors are presented in a way that makes it easy to mentally calculate the zeros, so -n(n-5) is preferred because it's easier to see that the zeros are 0 and 5. 2/24/2014 | Steve S. Comment