Factorize each of the following expression completely 1. N^2 - 4N - 12 N =

Question

factorization and Algebra

Answer 1

N² - 4N - 12N = N² - 16N = N(N-16)

 

Are you sure this wasn't supposed to be:

N² - 4N - 12

 

If so, then look at the constant, -12, and the coefficient of the N term, -4.

Are there factors of -12 that add to make -4?  Yes ... (-6)(2)

 

N² - 4N - 12 = (N-6)(N+2)