Question: what is 2e in excel?
Answer: 2E+09 is "scientific notation" (Scientific format) for "2 times 10 to the 9th power" = 2 * 10*10*10*10*10*10*10*10*10 (9 times). It could be written 2 * 10^9 (not recommended). x^3 means "x to the 3rd power", which is x*x*x. "x" is a variable; you determine its value. In Excel, you might put the value into A1.