Question

1) m^2-4m дробь m^2-16
2) m^3+8 дробь m^2-2m+4

Answer 1

$frac{m^2-4m}{m^2-16}= frac{m(m-4)}{(m-4)(m+4)}= frac{m}{m+4} \ \ frac{m^3+8}{m^2-2m+4}= frac{(m+2)(m^2-2m+4)}{m^2-2m+4}=m+2$