Question: Working modular arithmetic, modulo 5 5. Recall a root of polynomial ( ) p(x) is a value r where ( ) = 0 p(r)=0. What
Working modular arithmetic, modulo 5 5. Recall a root of polynomial ( ) p(x) is a value r where ( ) = 0 p(r)=0. What is a root of ( ) = ( + 1 ) 2 ( m o d 7 ) p(x)=(x+1) 2 (mod7)? (Answer should be in { 0 , ... , 6 } {0,...,6}.) 0
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