(0) Suppose a(t) = t2 + t + . If $200 invested at time 0 accumulates to $272 at time 4 and $400 invested at time 0 accumulates to $448 at time 2, find the accumulated value at time 8 of $1,800 invested at time 6. (Hint: First find the unknowns and . Then determine how much money X that you would need to deposit at time 0 in order to have an accumulation of $1,800 at time 6. The desired answer is the accumulated value of X at time 8.) (Round your answer to the nearest cent.)

I keep getting 1776.

latest chegg response was 2104 and that was incorrect