(3√2+2√6) x (3√2+2√6)

(3 √2 + 2 √6) × (3 √2 + 2 √6) = 9 √4 + 6 √12 + 6 √12 + 4 √36
                                              = 9 × 2 + 12 √12 + 4 × 6
                                              = 18 + 12 √(4 × 3) + 24
                                              = 42 + (12 × 2)√3
                                              = 42 + 24√3