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anonymous

  • one year ago

Why might algebra tiles not be a good tool to use to factor x2 + 18x + 80? Explain

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  1. anonymous
    • one year ago
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    does anyone know what is is

  2. welshfella
    • one year ago
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    algebra tiles????

  3. anonymous
    • one year ago
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    in class they are making me learn Factoring Trinomials: a = 1

  4. welshfella
    • one year ago
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    can you think of 2 numbers whose product is 80 and whose sum is 18? they will be the a and b in the factors (x + a)( x + b)

  5. welshfella
    • one year ago
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    it will help if we think of factors of 80

  6. anonymous
    • one year ago
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    I think it will be (x+10)(x+8)

  7. welshfella
    • one year ago
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    you are right

  8. anonymous
    • one year ago
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    and it also says explain

  9. welshfella
    • one year ago
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    |dw:1440514864435:dw|

  10. anonymous
    • one year ago
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    in words plz

  11. welshfella
    • one year ago
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    well the middle term 18x is formed by multiplying the x by 8 and adding to x times 10

  12. welshfella
    • one year ago
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    |dw:1440515061727:dw|

  13. welshfella
    • one year ago
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    and the last term is formed by multiplying the 2 last numbers in the parentheses

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