Which of the following binomials is a factor of x^3+4x^2+x-6


x-2
x+2
x-4
x+4

2 answers

if x-2 is a factor, then x = +2 has to make the expression equal to zero
if x+2 is a factor, then x = -2 has to make the expression equal to zero

try it ...

then use the same concept for the other cases.
But that still didn’t give me the answer
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