Question

how to find
m^2 -4m -12/m2 +6m +8 divided by m-8/m2+4m

Answer 1

(m2-4m-12)(m2+4m)/(m2+6m+8)(m-8)=
(m-6)(m+2)(m)(m+4)/(m+4)(m+2)(m-8)=
(m-6)(m)/(m-8)=

m^2-6m/m-8