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anonymous

  • one year ago

[Challenge!] Give me 2 "hard" factoring polynomial equation. If I can't solve it before 5 minutes, I will be your fan. :)

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  1. UsukiDoll
    • one year ago
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    \[12x^2+10x-16 \] \[9999x^2+9000x-4500 \] no calculators.... no online materials... all by using the quadratic formula and the discriminant formula. Have fun :)

  2. welshfella
    • one year ago
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    try x^4 - 2x^3 - 20x^2 - 8x - 96

  3. welshfella
    • one year ago
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    Hint :- factor 96

  4. UsukiDoll
    • one year ago
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    awww naw... we have to make it challenging and fun though ;)

  5. anonymous
    • one year ago
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    (x+4) (x-6) (x+2) (x-2)

  6. welshfella
    • one year ago
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    no cant be right because the numbers multiply out to +96

  7. UsukiDoll
    • one year ago
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    did you do that on your own??? xS looks wolframish

  8. welshfella
    • one year ago
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    this is not easy

  9. anonymous
    • one year ago
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    Yup..I used Synthetic Division.....

  10. welshfella
    • one year ago
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    (x + 4) is a factor

  11. anonymous
    • one year ago
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    What is the right answer then?

  12. welshfella
    • one year ago
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    (x^2 + 4)(x+4)(x-6)

  13. anonymous
    • one year ago
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    OH fudge....I factored (x^2 + 4) thinking it was (x^2-4) /facepalm Thanks anyway.

  14. UsukiDoll
    • one year ago
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    he was close though

  15. welshfella
    • one year ago
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    yes good effort

  16. UsukiDoll
    • one year ago
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    wanna try mine lol?

  17. welshfella
    • one year ago
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    I dont think yours will factor

  18. UsukiDoll
    • one year ago
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    how can you tell? :P

  19. anonymous
    • one year ago
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    I'm having a hard time in your problem xD Can you show me a step by step solution so that I could analyze it thoroughly?

  20. UsukiDoll
    • one year ago
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    I'm not going through that D:

  21. welshfella
    • one year ago
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    you'll need to use quadratic formula i think

  22. UsukiDoll
    • one year ago
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    oh yeah... I gave the two formulas to use XDDDDDDDDDDDD

  23. UsukiDoll
    • one year ago
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    discriminant formula and quadratic formula. first formula is awesome.. because you already have the b^2-4ac part

  24. UsukiDoll
    • one year ago
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    then when you use quadratic formula, you find the roots ... and write in factor form, so in the end you did factor... just in extra steps :P

  25. anonymous
    • one year ago
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    @UsukiDoll, regarding your first equation, this is my answer. \[(x-8) (x+\frac{ 17 }{ x-8})\]

  26. UsukiDoll
    • one year ago
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    oh my not even close...

  27. anonymous
    • one year ago
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    What?! Can you please give me the answer? Just the final no need for solution. I will try to make a solution for that final answer.

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