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B
False
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Solution
The correct option is B False The zero of x+1 is −1 Let p(x)=x4+x3+x2+x+1 Then, p(−1)=(−1)4+(−1)3+(−1)2+(−1)+1 =1−1+1−1+1=1 Since, p(−1)≠0 Therefore, by Factor theorem, x+1 is not a factor of x4+x3+x2+x+1