1. The problem statement, all variables and given/known data Find dP/dt of 2048000(t^2)(e^1600t)+5120t(e^-1600t)+3.2(e^-1600t) 2. Relevant equations 3. The attempt at a solution 2048000(2t(e^-1600t)-1600(t^2)(e^-1600t))+5120((e^-1600t)-1600(e^-1600t))+3.2(-1600(e^-1600t)) After moving the t over to simply the first part and multiplying thru I get: 4096000t-3276800000(t^2)+5120-8192000-5120(e^-1600t) Can this be correct? For some reason it seems like I did something wrong, but I keep checking the numbers and can't figure out what it could be. Thanks in advance!