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skate2400

  • 2 years ago

What polynomial has roots of -6, -4, and 1 ? x3 - 9x2 - 22x + 24 x3 - x2 - 26x - 24 x3 + x2 - 26x + 24 x3 + 9x2 + 14x - 24

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  1. cwrw238
    • 2 years ago
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    (x+6)(x+4)(x-1) = 0 has these roots which will expand to one of your options

  2. cwrw238
    • 2 years ago
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    = (x-1)(x^2 +10+24)

  3. cwrw238
    • 2 years ago
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    that narrows it down to 2nd or 4th (-24)

  4. cwrw238
    • 2 years ago
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    that should be 10x in second parentheses

  5. cwrw238
    • 2 years ago
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    expansion will give -10x +24x - so which ne do you think it is?

  6. skate2400
    • 2 years ago
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    i think the 3rd one?

  7. cwrw238
    • 2 years ago
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    nope -10x + 24x = +14x

  8. cwrw238
    • 2 years ago
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    check out the one with +14x in it

  9. cwrw238
    • 2 years ago
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    it cant be the 3rd one as it contains +24 - - see above - it must contain -24

  10. skate2400
    • 2 years ago
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    shoot ok let me see

  11. skate2400
    • 2 years ago
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    the last one right? i didnt even see the 14x haha

  12. cwrw238
    • 2 years ago
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    right - hope you dont mind me 'playing' with you - they like us to guide you through on this site - not just give you the answer

  13. skate2400
    • 2 years ago
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    no i understand i rather understand how to solve it then just get an answer :]

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