I used the trendline feature in excel and recieved an equation of "y =
3E+09x6 - 7E+08x5 + 8E+07x4 - 4E+06x3 + 42077x2 + 1197.x"

What do thhe Plus signs mean after the E (presumably the E means times ten
to the ____). Also, what does the decimal mean before the x (the last term)