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anonymous

  • one year ago

Which of the following is a factor of x2− 6x − 27? x + 3 x + 9 x − 1 None of the above

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  1. anonymous
    • one year ago
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    I'm not looking for the answer as much as how to do it

  2. skullpatrol
    • one year ago
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    any ideas?

  3. anonymous
    • one year ago
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    x - 3?

  4. skullpatrol
    • one year ago
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    that is not an option :)

  5. anonymous
    • one year ago
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    x +3

  6. anonymous
    • one year ago
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    you got it, just wrong sign lol

  7. anonymous
    • one year ago
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    why +?

  8. anonymous
    • one year ago
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    It's -6x right?

  9. anonymous
    • one year ago
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    no, I mean the answer is x + 3

  10. anonymous
    • one year ago
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    But I get x + 3 from factoring -6x right?

  11. anonymous
    • one year ago
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    I figured since i started with -6 it would be -3

  12. skullpatrol
    • one year ago
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    |dw:1433451002559:dw|

  13. pooja195
    • one year ago
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    i dont mean to interupt but you can see it visually |dw:1433451126700:dw| now ask yourself what 2 numbers multiply to make -27 BUT also add to -6 sorry if i confused you i didnt mean to interupt i thought it would help

  14. skullpatrol
    • one year ago
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    have you seen that^^ before?

  15. anonymous
    • one year ago
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    :/ No

  16. anonymous
    • one year ago
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    I think I might need to go back and review factoring

  17. skullpatrol
    • one year ago
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    |dw:1433451287868:dw|

  18. skullpatrol
    • one year ago
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    because -27 is negative r and s will have opposite signs now test the possibilities to see which produces -6

  19. skullpatrol
    • one year ago
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    |dw:1433451629461:dw|

  20. skullpatrol
    • one year ago
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    |dw:1433451957249:dw|