2. REMAINDER THEOREM
Overview:
ο± As the Remainder Theorem points
out, if you divide a polynomial
p(x) by a factor x β a of that
polynomial, then you will get a zero
remainder.
3. REMAINDER THEOREM
ο± p(x) = (x β a)q(x) + r(x)
If x β a is indeed a factor of p(x), then
the remainder after division by x β
a will be zero. That is:
p(x) = (x β a)q(x)
Overview:
4. REMAINDER THEOREM
Overview:
ο± In terms of the Remainder Theorem, this
means that, if x β a is a factor of p(x),
then the remainder, when we
do synthetic division by
x = a, will be zero.
6. FACTOR THEOREM
Overview:
ο± The point of the Factor Theorem is the
reverse of the Remainder Theorem: If you
synthetic-divide a polynomial
by x = a and get a zero remainder, then,
not only is x = a a zero of the polynomial,
but x β a is also a factor of the
polynomial.
7. FACTOR THEOREM
Overview:
ο± Just as with the Remainder Theorem, the
point here is not to do the long division of
a given polynomial by a given factor. This
Theorem isn't repeating what you already
know, but is instead trying to make your
life simpler.