Question

I need help with this question

Answer 1

= 4 (6) - 4 (√2) + √2 (6) - √2 √2
= 24 - 4√2  + 6√2 - 2 
= (24 - 2)  +  (- 4√2  + 6√2)
= 22 + √2(- 4 + 6)
= 22 + √2 (2)
= 22 + 2√2

hope it helps