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anonymous

  • one year ago

Which expression is equivalent to (82)−4?

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  1. anonymous
    • one year ago
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    is this supposed to be a multiple choice question?

  2. Astrophysics
    • one year ago
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    That's just 82-4..

  3. anonymous
    • one year ago
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    Yes

  4. anonymous
    • one year ago
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    how can I show the answers?

  5. Astrophysics
    • one year ago
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    We don't need them, |dw:1435183960425:dw|

  6. Astrophysics
    • one year ago
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    Do you know how to subtract?

  7. anonymous
    • one year ago
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    (8^2) -4 is the question

  8. Astrophysics
    • one year ago
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    Oooh!

  9. anonymous
    • one year ago
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    yes I do

  10. anonymous
    • one year ago
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    what's 8 squared

  11. Astrophysics
    • one year ago
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    \[(8^2)-4 \implies 8 \times 8 - 4\]

  12. Astrophysics
    • one year ago
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    \[8^2 = 8 \times 8 \]

  13. anonymous
    • one year ago
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    so it would be 8^2 ?

  14. Astrophysics
    • one year ago
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    What?

  15. Astrophysics
    • one year ago
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    I'm saying 8^2 is 8 times 8

  16. Astrophysics
    • one year ago
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    x^2 = x * x

  17. anonymous
    • one year ago
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    its a multiple choice question with A,b, c, and d

  18. Astrophysics
    • one year ago
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    I don't care about the multiple choice

  19. anonymous
    • one year ago
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    do you know what 8 times 8 is??

  20. anonymous
    • one year ago
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    yes

  21. Astrophysics
    • one year ago
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    Just answer the question what is \[8 \times 8 -4\]

  22. anonymous
    • one year ago
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    60

  23. Astrophysics
    • one year ago
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    Yeah, that's it.

  24. anonymous
    • one year ago
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    thank you

  25. Astrophysics
    • one year ago
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    Just remember this, if you see something squared, cubed, what ever, it just means that it's being multiplied by itself by the amount of the exponent.

  26. anonymous
    • one year ago
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    hmm.. thank you for your help (:

  27. Astrophysics
    • one year ago
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    So \[8^5 \implies 8 \times 8 \times 8 \times 8 \times 8\]

  28. Astrophysics
    • one year ago
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    Np :P

  29. anonymous
    • one year ago
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    (82)−4? 82 x -4

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