Question: Verifying if a certain function is one-to-one.

I examined some rules to verify that if a certain function for example f(x)=x^2+5 is a 1-1 function or not.

What I did after defining the function was as follows:

[> assume(x>0,s>0);

[> solve(f(x)=f(s),{x,s});


[> solve(f(x)=f(s),{x,s}) assuming x:: positive;


They didn't give me just


at all. Thanks so much.


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