Question 155424
(4-√3)/(6+√y) 
It says to rationalize the demoniator 
----------------------------------------
Multiply numerator and denominator by (6-sqrt(y)) to get:

= [4-sqrt(3)(6-sqrt(y))] / [36-y]

= [24 - 4sqrt(y) -6sqrt(3) + sqrt(3y)]/(36-y)
================================================
cheers,
Stan H.