plshelp1232 plshelp1232 24-06-2018 Mathematics contestada Help!!!!!!! Let f(x)=x^2+1 and g(x)=x^4-1. Find f•g. A)x^4+x^2-1 B)x^6-x^2-1 C)x^8+x^4-x^2+1 D)x^6+x^4-x^2-1