Question

PLEASE HELP And show work if so thank you so much

Answer 1

You use Sarrus rule, and perform the following multiplications of diagonal items:

diagonals from left to right (using wrap around)

+14*8*5
+-13*-1*-10
+0*3*-2

diagonals from right to left are subtracted

-0*8*-10
--13*3*5
-14*-1*-2

is 560-130+0 - 0+195-28 = 597