(X-9)^3 (x+2)^2 (x-1)^1 (x+4)^1 The multiplicity is the exponent on the factor. Since the factors repeat I write them so you could see easily how to interpret the question. (X-9) has multiplicity 3 (X+2) has multiplicity 2 (X-1) has multiplicity 1 (X+4) has multiplicity 1 Hope this helps.