## Elementary Technical Mathematics

$(m-12)(m-6)$
$m^2-18m+72$ has no common monomial factor $=(\ \ \ \ \ \ \ \ )(\ \ \ \ \ \ \ \ )$ $=(m\ \ \ \ \ \ )(m\ \ \ \ \ \ )$ $=(m-\ )(m-\ )$ The 2nd coefficient is negative and the 3rd is positive, so the factors of 72 are both negative. $=(m-12)(m-6)$ -12 and -6 have a sum of -18 and a product of 72.