Algebra

((4)(11)(16))^2 

= 704*704

= 495616

We have $j = 4$, $a = 11$, and $z = 16$, meaning $jaz^2 = 4 \times 11 \times (16^2) = \color{brown}\boxed{11,264}$

Note that the squared applies to the $z$ only, not $j \times a \times z$