Expression 3: "N" left parenthesis, "x" , right parenthesis equals "x" minus StartFraction, left parenthesis, "x" cubed minus 2 "x" squared minus 4 "x" , right parenthesis Over 3 "x" squared minus 4 "x" minus 4 , EndFractionNx=x−x3−2x2−4x3x2−4x−4
3
Expression 4: "N" left parenthesis, "N" left parenthesis, "N" left parenthesis, 3 , right parenthesis , right parenthesis , right parenthesisNNN3