Difference between revisions of "Remainder Theorem"
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| − | What is | + | What is the remainder when <math>x^2+2x+3</math> is divided by <math>x+1</math>? |
==Solution== | ==Solution== | ||
Revision as of 15:55, 2 July 2017
Contents
Theorem
The Remainder Theorem states that the remainder when the polynomial 
is divided by 
(usually with synthetic division) is equal to the simplified value of 
.
Examples
Example 1
What is the remainder when 
is divided by 
?
Solution
Using synthetic or long division we obtain the quotient 
. In this case the remainder is 
. However, we could've figured that out by evaluating 
. Remember, we want the divisor in the form of . 
so 
.
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