Posted by **sean** on Saturday, July 3, 2010 at 6:02am.

Which expression represents the sum of the following?

5 / 2t + 1 + -1 / 4t^2 + 4t + 1

a)10t + 4 / (2t + 1)^2

b) 4 / (2t + 1)^3

c)10t + 1 / (2t + 1)^2

d) 4 / 4t^2 + 6t + 2

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