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Anguyennn

  • one year ago

How to find the greatest common factor of x(a+2)-2(a+2)?

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  1. anonymous
    • one year ago
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    What do \(x(a+2)\) and \(-2(a+2)\) have in common?

  2. Anguyennn
    • one year ago
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    a and 2

  3. anonymous
    • one year ago
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    yeah, but you need to keep the plus sign in the middle. (a + 2) would be the gcf

  4. Anguyennn
    • one year ago
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    and then would x-2 go together?

  5. anonymous
    • one year ago
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    right

  6. Anguyennn
    • one year ago
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    could you also help me with 1/3x^4+2/3x^3-4/3x^2+1/3x?

  7. anonymous
    • one year ago
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    that's confusing as written. could you draw it out?

  8. Anguyennn
    • one year ago
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    yep

  9. Anguyennn
    • one year ago
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    |dw:1442112209580:dw|

  10. Anguyennn
    • one year ago
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    finding the gcf

  11. anonymous
    • one year ago
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    There's a denominator of 3 and an x in each term, so the gcf would be \[\frac{ 1 }{ 3 }x\]

  12. Anguyennn
    • one year ago
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    why does there have to be a numerator?

  13. anonymous
    • one year ago
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    because all fractions must have a numerator and denominator

  14. anonymous
    • one year ago
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    alternatively, you could say,\[\frac{ x }{ 3 }\]

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