Question 170460
Rationalize the denominator. 
(4-√3)/(6+√y)

Multiply numerator and denominator by (6-sqrt(y)) to get:

= [(4-sqrt(3))(6-sqrt(y))]/[3y-y^2]

= [24-4sqrt(y)-6sqrt(3)+sqrt(3y)]/[3y-y^2]

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Cheers,
Stan H.