Answer:
-320x^8y^9z
Explanation:
-2^2 ( 80x ^8 x y^9 x z) we split parenthesis and can only simplify.
-2^2 x 80 = -320x^8y^9z we multiply out 80 x -2
We ignore the 4 as the square of -2 = -4 not 4.
Hopefully you can see how the -4 x 80 = -320 and thereafter simplify. You could x again by 8 then x by 8 and show
-320 * 8x * 9y * z = -23040xyz
However, -320x^8y^9z is adequate.