Question

⅓ akar 18 + 2 akar 128 - akar 98

Answer 1

1/3 √(9 x 2) + 2√(64 x 2) - √(49 x 2)
= 1/3 x 3√2 + 2 x 8√2 - 7√2
= √2 + 16√2 - 7√2
= 10√2