Question

As shown in figure

`5`
​

Answer 1

12.
`√(3)(2+√(6) )`

13. 9√2

Explanation:

12. 4√3-√12+√18

4√3-2√3+√18

2√3+√18

`√(3)(2+√(6) )`

13.(2√12-3√1/3)√6

(4√3 - 3√(1/3))√6

4√18 - 3√(6/3)

12√2-3√2

9√2