
3   Expand –x(x^{2} – 2xy + y^{2}). 
  A)  ?x^{2} + 2xy – y^{2} 
  B)  ?x^{3} – 2x^{2}y + xy^{2} 
  C)  x^{3} – 2x^{2}y + xy^{2} 
  D)  –x^{3} + 2x^{2}y – xy^{2} 


4   Expand –3m(2m^{3} – 3m^{2} + 4m – 5). 
  A)  6m^{4} – 9m^{3} + 12m^{2} – 15m 
  B)  –6m^{4} + 9m^{3} – 12m^{2} + 15m 
  C)  –6m^{4} + 3m^{3} – 4m^{2} + 5m 
  D)  2m^{4} – 3m^{3} + 4m^{2} – 5m 
