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If f(x)=x^4+x^2-x+2 and g(x)=x^2-x+1, find: f(x) – g(x)(a) x^4+1(b) x^2+1(c) x^2+2x+6(d) x^4-1This question was addressed to me during a job interview.This is a very interesting question from Polynomial and Modular Arithmetic- I topic in division Basic Concepts in Number Theory and Finite Fields of Cryptograph & Network Security

Answer»

Correct option is (a) x^4+1

For EXPLANATION I would SAY: Perform POLYNOMIAL SUBTRACTION.



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