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marktj

How do you synthetically divide (4x^3-7x^2-11x+50/(4x+5)?

  • one year ago
  • one year ago

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  1. marktj
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    Please show steps.

    • one year ago
  2. darkprince14
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    first you need to extract the value of x on the denominator 4x + 5 = 0 4x = -5 x = -5/4

    • one year ago
  3. Nory
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    Now write it like long division, except eliminate the x's and just write the coefficcients like you write synthetic division.

    • one year ago
  4. marktj
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    Thanks!!

    • one year ago
  5. jaersyn
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    can you draw the set up real quick?

    • one year ago
  6. jaersyn
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    |dw:1350137391171:dw|

    • one year ago
  7. darkprince14
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    remember to follow the level of their degree...

    • one year ago
  8. jaersyn
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    is it like that?

    • one year ago
  9. darkprince14
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    @jaersyn yep..it's like that..

    • one year ago
  10. darkprince14
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    wait..you forgot to write their signs @jaersyn

    • one year ago
  11. jaersyn
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    oh snap! you're right

    • one year ago
  12. jaersyn
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    i'm not even op, just trynna learn lol

    • one year ago
  13. darkprince14
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    -5/4 | 4 -7 -11 50

    • one year ago
  14. jaersyn
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    then you drop the 4, do (-5/4)*4 and put that under -7 and subtract or add?

    • one year ago
  15. darkprince14
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    depends on the sign..if it is negative you subtract.. if positive, you add..

    • one year ago
  16. darkprince14
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    if both of them possess the same sign then you add them then copy the sign..

    • one year ago
  17. jaersyn
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    ohh so -7 - 5 = -12

    • one year ago
  18. darkprince14
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    yep..next step...

    • one year ago
  19. jaersyn
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    -5/4 * -12 = 15 so -11 + 15 = 4

    • one year ago
  20. darkprince14
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    you got it right...

    • one year ago
  21. jaersyn
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    gotcha thanks for your help

    • one year ago
  22. darkprince14
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    no prob...glad to be of help:)

    • one year ago
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