Algebra 2
posted by Sira .
If P(x) is a polynomial in x for which P(3)=0, then..?
a) x3 is a factor of P(x)
b) x+3 is a factor of P(x)
c) 3x is a factor of P(x)
d) x^3 is a factor of P(x)

Algebra 2 
Steve
The Remainder Theorem shows that (a) is the answer.
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