If 2under root 45 + 3 under root 20 upon 2 under root 5 on simplification give rational or irational

If 2under root 45 + 3 under root 20 upon 2 under root 5 on simplificat

1.	If 2under root 45 + 3 under root 20 upon 2 under root 5 on simplification give rational or irational
Answer» It gives rational number and the answer is 6