To find the volume of the dirt removed from the plot after 3 weeks, we first need to simplify the expression 3(2² + 6) · (2 + 2³) and then add the additional 2³ to the result.
Using the order of operations (PEMDAS), we start by evaluating the parentheses first:
3(2² + 6) · (2 + 2³) = 3(4 + 6) · (2 + 8)
Next, we simplify the terms inside the parentheses:
3(10) · (10)
Then, we multiply the numbers outside the parentheses:
300 · 10
Finally, we add the additional 2³ (which is 8) to the result:
3000 + 8 = 3008
Therefore, the volume of the dirt removed from the plot after 3 weeks is 3008 cubic units.