+0  
 
+1
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avatar+63 

The function is:

 

f(x) = 15x4+10x3-6x2+14

 

The given value of k is:

 

k = 4

 Sep 19, 2019
 #1
avatar+106535 
+1

We are actually dividing f(x)  by the linear factor  (x -4)

 

This is analogous to testing to see if  4 is a root of  f(x)

 

So....we can perform synthetic division as follows

 

 4  [  15     10      - 6    0        14    ]

                 60     280  1096   4384

      ________________________

       15     70     274  1096    4398

 

So  q(x)  =   15x^3 + 70x^2 + 274x + 1096    

 

And   r(x)   =   4398 / [ x - 4 ]

 

 

 

cool cool cool

 Sep 19, 2019

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