Example 1.  Use quadratic synthetic division to divide   [Graphics:Images/BairstowMethodMod_gr_29.gif]    by   [Graphics:Images/BairstowMethodMod_gr_30.gif].  

Solution 1.

First, construct the polynomial  [Graphics:../Images/BairstowMethodMod_gr_31.gif].    

[Graphics:../Images/BairstowMethodMod_gr_32.gif]


[Graphics:../Images/BairstowMethodMod_gr_33.gif]

Second, given   [Graphics:../Images/BairstowMethodMod_gr_34.gif]  construct the polynomials [Graphics:../Images/BairstowMethodMod_gr_35.gif].    

[Graphics:../Images/BairstowMethodMod_gr_36.gif]


[Graphics:../Images/BairstowMethodMod_gr_37.gif]

 

 

Third, verify that  [Graphics:../Images/BairstowMethodMod_gr_38.gif].

[Graphics:../Images/BairstowMethodMod_gr_39.gif]


[Graphics:../Images/BairstowMethodMod_gr_40.gif]

 

We are done.  

Aside.  We can have Mathematica compute the quotient and remainder using the built in procedures  PolynomialQuotient  and  PolynomialRemainder.   This is just for fun!

[Graphics:../Images/BairstowMethodMod_gr_41.gif]


[Graphics:../Images/BairstowMethodMod_gr_42.gif]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(c) John H. Mathews 2004