Expression 7: "h" left parenthesis, "x" , right parenthesis equals "f" left parenthesis, "x" , right parenthesis times "g" left parenthesis, "x" , right parenthesishx=fx·gx
7
Expression 8: "h" left parenthesis, "x" , right parenthesis equals "f" left parenthesis, "x" , right parenthesis times "d" left parenthesis, "x" , right parenthesishx=fx·dx