D
dotuongbo


a> f(x)= x^100 + x^99 +... + x^2 +x +1
g(x)= x^2-1
b> f(x)= x^161 + x^37 + x^13 + x^5 +x + 2006
g(x)= x^2 +1
g(x)= x^2-1
b> f(x)= x^161 + x^37 + x^13 + x^5 +x + 2006
g(x)= x^2 +1
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