Travis K. answered  10/18/21
Economics Tutor for MBA, Intro (Principles), AP Micro / Macro classes
If AP stands for average product, which is usually APL or average product of labor, you can find the total output function by multiplying the average by quantity, like so:
APL = Output/Q
Total Product of labor or TPL = APL* Q
In this case:
TPL=12L2Q + 5LQ
Next to find MPL, just take the partial derivative with respect to Q of the total product function to find:
MPL = 12L2 + 5L
In this function, APL and MPL are the same.
 
     
            