Respuesta :

sqdancefan

Answer:

  (3 -k)(m +k)

Step-by-step explanation:

Group the terms in pairs, factor each pair, then pull out the common factor from that result.

  (3m -mk) +(3k -k²)

  = m(3 -k) +k(3 -k) . . . . . (3-k) is a factor common to both terms

  = (3 -k)(m +k)

Answer:

 (3 -k)(m +k)

Step-by-step explanation: