Question

9. Simplify the following:
(i) 4underoot 12X7 underoot 6​

Answer 1

Answer:

12 = 2 × 2 × 3, 6 = 2 × 3

given 4root 12 × 7 root 6

4 root 2× 2 × 3 * 7 root 2 × 3

4 × 7 root 2 × 2 × 3 × 3 × 2

one 2 is taken from 2 × 2

one 3 is taken from 3 × 3

so 4 × 7 × 2 × 3 root 2 = 168 root 2