Place the indicated product in the proper location on the grid
(3 x ^2a - 4 y ^a z ^3a) ^2

Answer:
9 x ^4a - 24 x ^2a y ^a z ^3a + 16 y ^2a z ^6a

Explanation:
I had this question and I couldn’t find the answer anywhere so after I figured it out I decided to post it in case someone else needed it to.