@ @¶ìÿa@óÝy‹¾a@ u@ @QWV
[Division Algorithm]
q(x ) g(x) f (x)
.r(x) = 0 ( ) r(x) ( )
0 ≤ deg(r(x)) < deg(g(x)) f (x) = q(x)g(x) + r(x)
[Roots of Polynomials] (.)
.
.
.
. ()
n f (x)
x −a
f (x) = (x − a)q(x) + f (a) q(a)
.n −1 x −a
f (x) ( )
. f (a) = 0