Question

prove that 3+2√5 is irrational​

Answer 1

Here is ur answer

Let the no. be rational

3 +2√5 = p/q

2√5 = p/q -3

2√5 = p - 3q/ q

√5 = p -3q/ 2q

hence it is rational but √5 is irrational so we conclude that the number is also irrational.