rationalize the denominator and collect the like terms
15/√5
To rationalize the denominator, we multiply both the numerator and denominator by the conjugate of the denominator, which is √5.
(15/√5) * (√5/√5)
= (15√5) / (√5 * √5)
= 15√5 / 5
= 3√5
So, the rationalized form of 15/√5 is 3√5.