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sgta101 Group Title

Question in comments...plz help

  • one year ago
  • one year ago

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  1. Hawk3ye Group Title
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    Ok.

    • one year ago
  2. sgta101 Group Title
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    \[a^4-29a^2+100<0\]

    • one year ago
  3. sgta101 Group Title
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    i really need an explanation or showing of work.

    • one year ago
  4. Hawk3ye Group Title
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    Holy chiznets. What type of math is this. Geometry, Triginometry, Calculus, Algebra, etc.

    • one year ago
  5. sgta101 Group Title
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    Algebra

    • one year ago
  6. Hawk3ye Group Title
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    1 or 2

    • one year ago
  7. sgta101 Group Title
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    2

    • one year ago
  8. sgta101 Group Title
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    quadratic inequalities

    • one year ago
  9. Hawk3ye Group Title
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    Can't help you their. I'm just getting out of Geometry. I take Algebra II starting Tuesday. Sorry laddy.

    • one year ago
  10. sgta101 Group Title
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    it's okay, thanks for trying

    • one year ago
  11. Hawk3ye Group Title
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    I aced Algebra I though I know that much. In my day we didn't have all this fancy schmancy stuff(I'm only 14). I don't know nuttn bout dis der Aljero!

    • one year ago
  12. Hawk3ye Group Title
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    I gotta kick outta that

    • one year ago
  13. sgta101 Group Title
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    im 14 also...

    • one year ago
  14. sgta101 Group Title
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    i need to find the solution set of the inequality.

    • one year ago
  15. Hawk3ye Group Title
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    Will you give me a medal for trying?? :DD

    • one year ago
  16. sgta101 Group Title
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    Maybe...

    • one year ago
  17. RolyPoly Group Title
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    Can you please solve the quadratic equation first? I mean to find that value of a when the equation is 0

    • one year ago
  18. Hawk3ye Group Title
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    Tehehe.

    • one year ago
  19. sgta101 Group Title
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    ya im pretty sure it's \[a^2-5a-2a+10\] After it's been factored it's \[(a-5)(a-2)(a-5)(a-2)\]

    • one year ago
  20. RolyPoly Group Title
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    Not quite..

    • one year ago
  21. RolyPoly Group Title
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    No repeated factors in this case.

    • one year ago
  22. sgta101 Group Title
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    so just \[(a−5)(a−2)\] ?

    • one year ago
  23. RolyPoly Group Title
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    There are four factors :)

    • one year ago
  24. sgta101 Group Title
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    so \[(a−5)(a−2)(a+5)(a+2)\] ?

    • one year ago
  25. RolyPoly Group Title
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    Bingo!

    • one year ago
  26. RolyPoly Group Title
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    |dw:1358566081932:dw| So, the graph is like this (sorry for my poor drawing..) In what region does the function have a value less than 0?

    • one year ago
  27. RolyPoly Group Title
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    *regions

    • one year ago
  28. sgta101 Group Title
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    i think i got it from here. one more thing does \[(a^2-5a-2a+10)^2\] become \[(a^2-7a+10)(a^2-7a+10)\]?

    • one year ago
  29. RolyPoly Group Title
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    Are you still working on the factorization part?

    • one year ago
  30. sgta101 Group Title
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    ya im making sure how i got the wrong answer.

    • one year ago
  31. sgta101 Group Title
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    i think i messed up in the factorization

    • one year ago
  32. RolyPoly Group Title
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    \[a^4 - 29a^2 +100\]\[=a^4 - 25a^2 - 4a^2 +100\]\[=a^2 (a^2-25) -4(a^2 - 25)\]\[=(a^2-4)(a^2-25)\]\[=(a-2)(a+2)(a^2-25)\]\[=(a-2)(a+2)(a-5)(a+5)\] The last two steps are just using the identity of difference of two squares. \(a^2-b^2 = (a+b)(a-b)\)

    • one year ago
  33. RolyPoly Group Title
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    I don't know how you get this: \[(a^2-5a-2a+10)^2\]

    • one year ago
  34. sgta101 Group Title
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    Thanks so much for this. :D

    • one year ago
  35. RolyPoly Group Title
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    You're welcome :)

    • one year ago
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