1. the area of a square with side length x, where the side length is decreased by 3, the area is
multiplied by 2 and then 4 square units are added to the area.

Step-by-step explanation:

Let's follow what the problem asks us:

this is the formula for area:

since the side length is x, the initial area is:

The side is now , thus the area is:

we had the area , when we multiply by 2:

this is:

if i did my math right then the answer should but 108