Question

2√5 +4√5 -3√5 is equal to
(a) 6√5
(b) 3√5
(c) 2√5
(d) √5

Answer 1

2\/5+4\/5-3\/5=\/5(2+4-3)=3\/5
therefore ans is (b) 3\/5

hope this helps:p

Answer 2

2root5 + 4root5 -3root5
=6root5 - 3root5
=3root5
so option (b) is correct)
hope it helps you