1.2√18-√8+√2 2.√2(√3+√8) 3.(3√2+2√3)(4√2-3√3)

1. 2.3√2 - 2√2 + √2 = 6√2 - 2√2 + √2 = 5√2
2. √2(√3 + 2√2) = √6 + 2.2 = 4√6
3. (3√2 . 4√2) - (3√2 . 3√3) + (2√3 . 4√2) - (2√3 . 3√3) = 24 - 9√6 + 8√6 - 18 = 6 - √6