Examples:

1. Type each Maple statement shown below and try to predict the result before typing Enter to complete each statement.

           eq1 := x^2 - 4 = 0
           exleft := lhs(eq1)
           exright := rhs(eq1)
           exleft1 := exleft + 4
           exright1 := exright + 4
           exleft2 := sqrt(exleft1)
           exright2 := sqrt(exright1)
           eq2 := exleft2 = exright2
         

   

   Comment: This sequence uses the lhs= and rhs commands to separate an equation into two expressions, those appearing on the left and right of the equal sign (=). The equation is then solved by performing the same operations on each of the two expressions and then they are combined into an equation again. This is a contrived example, but it shows the idea of how the lhs= and rhs operations can be used to separate equations into expressions.