Scheme help

[Grandeza]

So I'm taking my first computer programming class and we're learning a program called DrScheme although I think it is now DrRacket. So i was wondering if you could help me with a homework problem that I can't figure out =\

Write the (max2 x y) operator that evaluates to the larger argument.
Hint: Use these basic arithmetic operators: +,-,/, abs.

Test Cases:

(max2 3 5) -> 5
(max2 5 3) -> 5
(max2 3 3) -> 3
(max2 -2 -3) -> -2

 

[Masky]

(define max2
  (lambda (x y)
    (cond ((> x y) x)
             (else y))))

It's been a long time since I've used Scheme, but I think that's valid

That being said, this is a pretty simple function, so you might want to do some studying...