Expression 4: "D" left parenthesis, "x" , right parenthesis equals "f" left parenthesis, "x" , right parenthesis minus "g" left parenthesis, "x" , right parenthesisDx=fx−gx
4
Expression 5: "P" left parenthesis, "x" , right parenthesis equals "f" left parenthesis, "x" , right parenthesis times "g" left parenthesis, "x" , right parenthesisPx=fx·gx
5
Expression 6: "Q" left parenthesis, "x" , right parenthesis equals StartFraction, "f" left parenthesis, "x" , right parenthesis Over "g" left parenthesis, "x" , right parenthesis , EndFractionQx=fxgx
6
Expression 7: "m" left parenthesis, "x" , right parenthesis equals 2 times "f" left parenthesis, "x" , right parenthesismx=2·fx