Formulate an nlp model

A company produce two types of products .The total profit achieved from these products is described by the following equation. The total profit= (0.3 a)2-(0.5b)2+8a+12b+1500 where A = thousand of units of production B=thousand of units
Every 1,000 units of a requires one hour of units in the shipping department and every 1,000 units B requires 30 minutes of labor in the shipping department .Each unit of product requires two pounds of special ingredient of which 64,000 pounds are available. Additional 80 hours of shipping labor are available .Demand for A and B unlimited.
Formulate an NLP model for this problem.
implement your model in a spread sheet and solve it optimal solution

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