How can I get a better simplification of my results

I have been working on a program that gives me some results as a function of "k" and "m" (symbolic variables). However, this result is shown as this:

When, it is much simpler, the solution is just this:

How can I manage to make Matlab give me the result in a more digestible way? (I've already tried "simplify")

Thank you very much guys

Answer 1

[Takumi]

syms k m
s = [-(3*10^(1/2)*(k*m)^(1/2))/(10*m);
     (3*10^(1/2)*(k*m)^(1/2))/(10*m)];
assume([m,k],'positive');
s_sign = sign(s);   % signum
assume([m,k],'clear')    % reset assume
S = s.^2;
S = simplify(S);
s = s_sign.*sqrt(S)

s = 

[Ahmet Anil]

Whats your purpose at that lists?

assume([m,k],'positive');

s_sign = sign(s); % signum

assume([m,k],'clear')

[Walter Roberson]

syms k m
s = [-(3*10^(1/2)*(k*m)^(1/2))/(10*m);
     (3*10^(1/2)*(k*m)^(1/2))/(10*m)];
s_sign = sign(s);   % signum
S = s.^2;
S = simplify(S);
s = s_sign.*sqrt(S)

s = 

So the assume() is there to have the sign() vanish