Problem using primary and subfunction

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Steven 2012-3-31

I am having a problem with using the subfunction to find the zeros of an equation.

Here is the problem:

Use a primary function with a subfunction to compute the zeros of the function 3x^3 - 12x^2 - 33x + 80 over the range -10<x<10

Please Help! Thank you.

Jan 2012-3-31

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