Question

How do i answer this??

Answer 1

1. You can see that the common factor is 3 so 3×2 =6 so thats where root 2 comes from. You multiply and the radical goes away hence the answer is
2. 
   `3 √(2)`
3. Combine like factors such that 18 × 8 =144 and the square root of 144 is 12 hence the answer is 12