SOLUTION: √(r-)-√(s)/√(r)+√(s) How do I rationalize the denominator? Assuming that all the expressions under radicals represent positive numbers.

Algebra ->  Radicals -> SOLUTION: √(r-)-√(s)/√(r)+√(s) How do I rationalize the denominator? Assuming that all the expressions under radicals represent positive numbers.       Log On


   



Question 351706: √(r-)-√(s)/√(r)+√(s)
How do I rationalize the denominator? Assuming that all the expressions under radicals represent positive numbers.

Answer by Jk22(389) About Me  (Show Source):
You can put this solution on YOUR website!
We can multiply by √(r)-√(s)/√(r)-√(s)
this gives : (√(r)-√(s))^2/(r-s), for (a+b)(a-b)=a^2-b^2