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calculusxy

  • one year ago

MEDAL!!! Help with factoring quadratic expressions... (question will be posted below)

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  1. calculusxy
    • one year ago
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    \[6x^2 + 24x - 462\]

  2. calculusxy
    • one year ago
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    @jim_thompson5910

  3. Mertsj
    • one year ago
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    Factor out 6 first

  4. Mertsj
    • one year ago
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    6(x^2+4x-77)

  5. Mertsj
    • one year ago
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    Bet you can get it from there can't you?

  6. calculusxy
    • one year ago
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    i found the factors of 462: 1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, 462 but i need to find tow factors that when combined will be 24

  7. calculusxy
    • one year ago
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    *two

  8. anonymous
    • one year ago
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    use what @Mertsj said

  9. Mertsj
    • one year ago
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    Factor out 6 first

  10. calculusxy
    • one year ago
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    okay. and after that?

  11. anonymous
    • one year ago
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    6 times (x+11) times (x-7)

  12. calculusxy
    • one year ago
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    i still don't understand... @Mertsj

  13. anonymous
    • one year ago
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    6x2+24x−462 can be simplified to 6(x2+4x-77) Then x2+4x-77 can be made into (x+11)(x-7) Then add the 6 from before 6(x+11)(x-7)

  14. calculusxy
    • one year ago
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    oh okay ... i understand it much better now. :) thanks @CasidyCat

  15. anonymous
    • one year ago
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    The end simplification is basically that you had two find two factors of 77 that added up to 4. This will work on most. :)

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