Simplification of expressions with radicals in Maple Having for example the expression $$\frac{abc\sqrt2}{d\sqrt{ab}}$$ (which results from a sequence of manipulations), can I force Maple to write it in the form $$\frac{c\sqrt{2ab}}{d}.$$ Many might find this as being the same thing, but I prefer the second to clarify some properties easily when explaining my work.

You wrote "for example". Does that mean that your example only has the form of your actual problem, and that say a and b are used by you here as placeholders for more involved expressions? If so, then do you know anything about their sign?
expr:=a*b*c*sqrt(2)/(d*sqrt(a*b));

                                         1/2
                                  a b c 2
                          expr := ----------
                                         1/2
                                  d (a b)


radnormal(expr);

                             1/2      1/2
                            2    (a b)    c
                            ---------------
                                   d

combine(simplify(expr)) assuming a>0, b>0;

                             1/2      1/2
                            2    (a b)    c
                            ---------------
                                   d

evala(expr);

                             1/2      1/2
                            2    (a b)    c
                            ---------------
                                   d

evala(Normal(expr));

                             1/2      1/2
                            2    (a b)    c
                            ---------------
                                   d

rationalize(expr);

                             1/2      1/2
                            2    (a b)    c
                            ---------------
                                   d

If radnormal(expr) does not work for you, and if the names you used are indeed unassigned in that example, then what version of Maple are you using?
