GRRR I HATE THIS!!!

Can someone put me onto the right track for this one, dont tell me the answer, just tell me how to solve it please.

Graph- https://imgur.com/a/kKaSq

Question- Round all real zeros in the graph to the nearest integer and find a polynomial function P of lowest degree, with the absolute value of the leading coefficient equal to 1, that has the indicated graph.

K thx

Guest Jun 1, 2017