Question

Check whether (x+1) is a factor of x3+32+3x+1​

Answer 1

Just substitute x=-1 by remainder theorm we have
It will be 29 therefore it is not the factor of this polynomial

Answer 2

x+1=0

x=-1

(x^3)+32+3x+1

(-1^3)+32+3(-1)+1

-1+32-3+1

29

x+1 is not a factor of (x^3)+32+3x+1.

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