SOLUTION: Rationalize the denominator. Assume that all variables represent positive numbers. <a href="http://photobucket.com" target="_blank"><img src="http://i83.photobucket.com/albums/

Algebra ->  Rational-functions -> SOLUTION: Rationalize the denominator. Assume that all variables represent positive numbers. <a href="http://photobucket.com" target="_blank"><img src="http://i83.photobucket.com/albums/      Log On


   

Question 48070: Rationalize the denominator. Assume that all variables represent positive numbers.
Photobucket - Video and Image Hosting
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt(81/5)
=9sqrt(1/5)
Multiply numerator and denominator by sqrt5 to get:
=9(sqrt5)/5
=(9/5)sqrt5
Cheers,
Stan H.