4) ► The cost (in dollars) of producing "x" units of a certain product is given by C(x) = 2x³ 4x² − 128x + 756 a) Write the equation that indicates "the cost is equal to $500". Then, write all terms on one side and equal to zero. Show the resulting equation here: b) Use factoring to solve the equation from part(a). Answer: "The cost is equal to $500 when units are produced" = 0 c) What is the interval of values of "x" that result in a cost lower than $500? Answer in one of the following ways: "The cost is less than $500 when the number of units produced is between "The cost is less than $500 when the number of units produced is less than "The cost is less than %500 when the number of units produced is greater than and 11

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