Question

(2+root2) ^2 it is rational or irrational give statement

Answer 1

$(2 + \sqrt{2} ) {}^{2} = 4 + 2 + 4 \sqrt{2} \\ = 6 + 4 \sqrt{2}$
so it is irrational

Answer 2

4+2✓2+2
6+4✓2
6+4✓2is irrational