An environmental protection agency discovered in the beginning of 2009 that a waste dump has been seeping toxic chemicals into the groundwater. The agency estimates that the rate of seepage of toxic chemicals from the waste dump (in liters per year) is given by 3785 R(t) t2 + 2t + 1 where t is the time in years since the discovery of the seepage. Find the total amount of toxic chemicals that seep from the waste dump from the beginning of 2011 to the end of 2015. Hint: If you get stuck, try factoring.

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