The 3 boxes of the right corner can be placed with three-term of the expression.
We need to place the indicated product in the proper location on the grid.
At first, we need to calculate the product of the expression.
Therefore,
[tex]\begin{aligned}(a+3)(a-2)&=a(a-2)+3(a-2)\\&=a^2-2a+3a-6\\&=a^2+a-6 \end{aligned}[/tex]
Now, we need to place the result on the grid.
The grid has 10 vacant spaces and we have the multiplication result of three terms. Thus, the 3 boxes of the right corner can be placed with three-term of the expression.
To know more about it, please refer to the link:
https://brainly.com/question/20797973