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anonymous

  • 5 years ago

please help......... solve for x x^3+2x^2=13x+6

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  1. amistre64
    • 5 years ago
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    solve for x ...... hmm...

  2. amistre64
    • 5 years ago
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    get it all to one side to keep track of it

  3. amistre64
    • 5 years ago
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    x^3+2x^2=13x+6 x^3 +2x^2 -13x -6 = 0

  4. amistre64
    • 5 years ago
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    trial and error is my best shot for this; we can narrow down the pool by using the ......something something thrm lol

  5. amistre64
    • 5 years ago
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    +- 1,6,2,3 and synthetic them to test for 0 remainders

  6. amistre64
    • 5 years ago
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    x=6 ? 6| 1 +2 -13 -6 0 6 48 .....aint gonna be it ---------------- 1 8 35

  7. anonymous
    • 5 years ago
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    ok thanks i got it from there

  8. amistre64
    • 5 years ago
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    x=3? 3| 1 +2 -13 -6 0 3 15 6 -------------- 1 5 2 0 <-- yay!!

  9. amistre64
    • 5 years ago
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    now we got a quad left

  10. amistre64
    • 5 years ago
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    (x-3)(x^2 +5x +2)

  11. anonymous
    • 5 years ago
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    yea thanks :)

  12. amistre64
    • 5 years ago
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    youre welcome :)

  13. amistre64
    • 5 years ago
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    i knew you could do it; I just didnt know if I could ;)

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spraguer (Moderator)
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