p(x)=(5x^8)-(x^2)+100x-3

Write all possible rational zeroes, please show how you arrived at the answer. I just came up with this problem hope it works

There appears to be only 2 values o X

that gives a zero output:
X = 0.0300.

X = 99.9699

I used Excel Spread sheets to do the calculations, otherwise, it would be a tedious process.