A country's census lists the population of the country as 254 million in 1990, 286 million in 2000, and 314 million in 2010. Fit a second-degree polynomial passing through these three points. (Let the year 2000 be x = 0 and let p(x) represent the population in millions.)
p(x) = ________ million
Use this polynomial to predict the populations in 2020 and in 2030.
2020 ________ million
2030 ________ million