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anonymous

  • one year ago

What is the product of the following after distributive property? 5y(2x-4)

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  1. jackthegreatest
    • one year ago
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    r u asking for the answer?

  2. anonymous
    • one year ago
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    The steps and the answer

  3. jackthegreatest
    • one year ago
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    oh well there is only one step actually so ill just say the answer 10y squared - 20y

  4. jackthegreatest
    • one year ago
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    i couldnt figure out how to type a small 2

  5. anonymous
    • one year ago
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    Wait so its 20y?? Where did the x go...?

  6. jim_thompson5910
    • one year ago
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    |dw:1442547591243:dw|

  7. jackthegreatest
    • one year ago
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    oh sorry

  8. jackthegreatest
    • one year ago
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    10xy -20y

  9. jackthegreatest
    • one year ago
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    and @jim_thompson5910 she wanted the answer

  10. jim_thompson5910
    • one year ago
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    multiply the outer `5y` by each of the inner terms ( `2x` and `-4`) |dw:1442547636835:dw|

  11. anonymous
    • one year ago
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    Jim always shows me the steps and 10xy-20y??

  12. jim_thompson5910
    • one year ago
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    yeah it's 10xy-20y |dw:1442547701927:dw|

  13. anonymous
    • one year ago
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    I understand that now, thank you for explain in detail :) Also, could you let me know if i did this correct. What is the product of the following after multiplied by FOIL? (x+3)(x-7) = x^2-4x-21 ??

  14. jim_thompson5910
    • one year ago
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    (x+3)(x-7) = x^2-4x-21 is correct. You can use a table like this to verify |dw:1442548028096:dw|

  15. jim_thompson5910
    • one year ago
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    |dw:1442548058486:dw|

  16. anonymous
    • one year ago
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    Thank you :) I have one final question that im not to sure how to do. Factor the polynomial first by gcf followed by factorimg the trinomial. Please describe your steps. 2x^2-6x-36

  17. jim_thompson5910
    • one year ago
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    whats the GCF of 2,6, and 36

  18. anonymous
    • one year ago
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    6?

  19. jim_thompson5910
    • one year ago
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    6 isn't a factor of 2

  20. anonymous
    • one year ago
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    Omg i meant 2 im so sorry

  21. jim_thompson5910
    • one year ago
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    so we can factor out 2 to get 2*(....) what goes in the blank?

  22. anonymous
    • one year ago
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    X^2-3x-18

  23. jim_thompson5910
    • one year ago
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    yes

  24. jim_thompson5910
    • one year ago
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    now factor x^2 - 3x - 18

  25. anonymous
    • one year ago
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    Would it be x-15?? Idk what to do

  26. jim_thompson5910
    • one year ago
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    |dw:1442548228029:dw|

  27. jim_thompson5910
    • one year ago
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    |dw:1442548239717:dw|

  28. anonymous
    • one year ago
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    (X-6)(x+3) ?!?!

  29. jim_thompson5910
    • one year ago
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    very good

  30. jim_thompson5910
    • one year ago
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    so overall, the entire thing factors to 2(x-6)(x+3)

  31. anonymous
    • one year ago
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    Is the answer 2(x-6)(x+3)? If so thank you for all of your help

  32. jim_thompson5910
    • one year ago
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    yeah it is

  33. anonymous
    • one year ago
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    Thanks!!

  34. jim_thompson5910
    • one year ago
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    yw

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