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ok.... had a similar problem to the person who asked this question.... Slidey posted: y''=168e^4x(e^2x+1)^5 + 28e^2x(e^2x+1)^6 y''=28e^2x(e^2x+1)^5(6e^2x+e^2x+1) y''=28e^2x(e^2x+1)^5(7e^2x+1) I was able to get the first part to this response by my self...but for some odd reason i...