Question

10radical din 13 + 5radical din 13 - 6 radical din 13

Answer 1

10√13 + 5√13 - 6√13 = 15√13 - 6√13 = 9√13 

Answer 2

$10 \sqrt{13} + 5 \sqrt{13} - 6 \sqrt{13} = 15 \sqrt{13} - 6 \sqrt{13} = 9 \sqrt{13}$