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08282013  #1 
Join Date: Aug 2013
Posts: 1

Please help me with this problem.
For what values of k will the remainder be the same when x^2 + kx + 4 is divided by (x1) or (x+1)?

09022013  #2  
Join Date: Dec 2008
Posts: 249

Quote:
Dividing x^2 + kx + 4 by x + 1 gives a remainder of 4  k + 1. Setting the two remainders equal to each other gives: 4 + k + 1 = 4  k + 1 5 + k = 5  k k = k 2k = 0 k = 0 If you plug k = 0 into the dividend you get x^2 + 4. Dividing that by either x  1 or x + 1 gives a remainder of 5. Last edited by MAS1; 09032013 at 12:51 PM.. Reason: correcting typos 

10112013  #3 
Join Date: May 2013
Posts: 3


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