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anonymous

  • one year ago

I AM CONFUSED PLEASE HELP!!!! How do i work a box method for polynomials!! Please give an example!!! WILL MEDAL AND FAN!!!

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  1. anonymous
    • one year ago
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    for factoring?

  2. anonymous
    • one year ago
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    Polynomials.

  3. anonymous
    • one year ago
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    I honestly don't know i am confused.

  4. anonymous
    • one year ago
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    I can write the steps but i wanna know how to work it. Using the box method, you write the first polynomial down the side of the box with each term in a row of its own and the second polynomial across the top with each term in a column of its own. Then, multiply each row and column, and fill in the result in the corresponding empty box. Finally, combine like terms to simplify.

  5. anonymous
    • one year ago
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    Oh ok. so it looks like you're multiplying on factoring. Let's try (3x -1) and (2x + 5)

  6. anonymous
    • one year ago
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    So we write 3x - 1 across the top and 2x + 5 down the side, keeping the sign with the constant.|dw:1439319159558:dw|

  7. anonymous
    • one year ago
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    Okay :]

  8. anonymous
    • one year ago
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    2x * 3x = 6x²|dw:1439319274674:dw|

  9. anonymous
    • one year ago
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    2x * -1 = -2x|dw:1439319328551:dw|

  10. anonymous
    • one year ago
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    3x * 5 = 15x|dw:1439319349253:dw|

  11. anonymous
    • one year ago
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    5 * -1 = -5|dw:1439319373916:dw|

  12. anonymous
    • one year ago
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    Then add all the numbers in boxes together. \[6x^2-2x+15x-5\]

  13. anonymous
    • one year ago
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    Okay give me 1 minute :]

  14. anonymous
    • one year ago
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    Is this correct? 6x^2+13x−5

  15. anonymous
    • one year ago
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    yes :)

  16. anonymous
    • one year ago
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    Okay thank you so much!

  17. anonymous
    • one year ago
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    you're welcome

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spraguer (Moderator)
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