Question

prove
that 3 +2 root 5 is irrational.​

Answer 1

Answer:

3+2 = 5 I think this will not help to your answer

Answer 2

Hello!!

3 + 2√5 = a/ b

2√5 =a/b -3

√5 =a-3b/2b

√5 is rational.

This contradicta the fact that √5 is irrational.

So our supposition is incorrect.

Hope this will help you.