Tuesday, 7 May 2013

Find the remainder when x3 – ax2 + 6x – a is divided by x – a.

Question 2. Find the remainder when x3 – ax2 + 6x – a is divided by x – a.
Solution:
Apply remainder theorem
=>x – a =0
=> x =  a
Replace x by  a we get
=> x3 – ax2 + 6x – a
=>( a)3 -a(a)2 + 6(a) - a
=>  a3sup> – a3 + 6a – a
=>  5a
Remainder is 5a

5 comments:

  1. Thanks for this solution. I was stuck at it and my brother refused to help me but still i got what i really want, the solution which is right. :)

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  2. Thanks very much.put more extra questions

    ReplyDelete
  3. tanks very much put extra questions

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  4. I solve the question

    x^3-ax^2+6x-a is divided by x-a and the divison answer is x^2+6 and remainder is 5a

    ReplyDelete
  5. Thank you very much for this answer...

    ReplyDelete