Question

If f(x)=x^3+x^2+2 and g(x)=x^2-x+1, find: f(x) + g(x)

(a) x^3+2x^2-x+3

(b) x^3+x^2+3

(c) x^3+x+1

(d) x^2+2x+4

This question was posed to me in an online quiz.

My query is from Polynomial and Modular Arithmetic- I in division Basic Concepts in Number Theory and Finite Fields of Cryptograph & Network Security

Answer 1

Right option is (a) x^3+2x^2-x+3

The best I can explain: We get the solutions via basic polynomial addition.