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Mathematics
Problem
Explain why
f
(
3
)
=
0
f(3)=0
f
(
3
)
=
0
must hold if
(
x
−
3
)
(x-3)
(
x
−
3
)
is a factor of a polynomial
f
(
x
)
f(x)
f
(
x
)
.
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