Algebra 2HardCircles & Lines ShareCircles & Lines · Hard problemLet f(x)=x2+1f(x) = x^2 + 1f(x)=x2+1. How many real numbers xxx satisfy f(f(x))=5f(f(x)) = 5f(f(x))=5?A444B222C111D000E333Check Show answer Walk through it step by step Practice more like this Review this concept