SubArea: Expressions with exponents and radicalsLevel: AProject ID: 9000013509Accepted: 1Clonable: 0Easy: 1Simplify the expression \((1 + \sqrt{2})^{2}\).\(3 + 2\sqrt{2}\)\(3\)\(3 - 2\sqrt{2}\)\(3 + \sqrt{2}\)
