1. x and y is variable 2) yes, it means x to the power of 5 yan can use your data to make six equation for example: a * 6789542137 ^ 6 + b * 6789542137 ^ 5 + c * 6789542137 ^ 4 + d * 6789542137 ^3 + d * 6789542137 ^ 2 + f * 6789542137 = 53426 (this is the first one, you can do the other) six equation to solve six variable can you calculate the a、b、c、d、e、f then use the known a、b、c、d、e、f to rebuild the equation the data is very big you can use maple software for you!!!good luck!!

a * x ^ 6 + b * x ^ 5 + c * x ^4 + d * x ^ 3 + e * x ^ 2 + f * x = y use you data you can solute a、b、c、d、e、f.