Determine x + 1 is a factor of x4 + 2x3 + 2x2 + x+ 1or not
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we can find it by either dividing or by remainder theorem
i am doing by remainder method
x+1=0
x=-1
by putting -1 in the place of x
(-1)^4+2(-1)^3+2(-1)^2+ (-1) + 1
= 1-2+2-1+1
=1 ( so x
=1 is not a factor of x4 + 2x3 + 2x2 + x+ 1
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