Groups and FieldsChallengeFinite Fields ShareFinite Fields · Challenge problemIn F9=Z3[x]/(x2+1)\mathbb F_9=\mathbb Z_3[x]/(x^2+1)F9=Z3[x]/(x2+1), how many elements yyy satisfy y2=2y^2=2y2=2?Check Show answer Walk through it step by step Practice more like this Review this concept