1. (root number 12+5 times root number 8) root number 3 = (2 √ 3+10 √ 2) * √ 3 = 6+10 √ 6.

2.(2 times radical number 3+3 times radical number 2)(2 times radical number 3-3 times radical number 2)= 12- 18=-6.

3. (5th root number 3+2nd root number 5)? =75+20√ 15+20=95+20√ 15

4. (Square root of root number 48+ 1/4 6) No.27 = (4 √ 3+1/4 √ 6) √ 3 = 4/3+112 √ 2.