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marktj

  • 3 years ago

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

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  1. marktj
    • 3 years ago
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    Please show steps.

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

  3. Nory
    • 3 years ago
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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.

  4. marktj
    • 3 years ago
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    Thanks!!

  5. jaersyn
    • 3 years ago
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    can you draw the set up real quick?

  6. jaersyn
    • 3 years ago
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    |dw:1350137391171:dw|

  7. darkprince14
    • 3 years ago
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    remember to follow the level of their degree...

  8. jaersyn
    • 3 years ago
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    is it like that?

  9. darkprince14
    • 3 years ago
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    @jaersyn yep..it's like that..

  10. darkprince14
    • 3 years ago
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    wait..you forgot to write their signs @jaersyn

  11. jaersyn
    • 3 years ago
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    oh snap! you're right

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

  13. darkprince14
    • 3 years ago
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    -5/4 | 4 -7 -11 50

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

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

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

  17. jaersyn
    • 3 years ago
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    ohh so -7 - 5 = -12

  18. darkprince14
    • 3 years ago
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    yep..next step...

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

  20. darkprince14
    • 3 years ago
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    you got it right...

  21. jaersyn
    • 3 years ago
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    gotcha thanks for your help

  22. darkprince14
    • 3 years ago
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    no prob...glad to be of help:)

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