i am trying to find a right answers with explanation. if you please could give the right numbers it will be a huge help. Thank you good reviews will be given.

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OP OP Find the marginal productivity functions and dk P = 100 0.69 0.31 OP dl (Use integers or decimals for any numbers in the expression.)Find all points (x,y) where f(x,y) has a possible relative maximum or minimum. Then use the second derivative test to determine, if possible, the nature of f(x,y) at each of these points. If the second derivative test is inconclusive, so state. f(x,y) =x3 -y2 -48x + 8y Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The point(s) where f(x,y) has a possible relative maximum or minimum is/are. (Type an ordered pair. Use a comma to separate answers as needed.) O B. There is no possible relative maximum or minimum