(M-2)(m+11) is the factorization
m^2+ 9m-22Break the expression into groups=(m^2-2m)+(11m-22)Factor out m from m^2-2m : m(m-2)Factor out 11 from 11m-22:11(m-2)=m(m-2)+11(m-2)Factor out common term:(m-2)=(m-2)(m+11)