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Sinz

  • 4 years ago

Simplify the following expression, and rewrite it in an equivalent form with positive exponents. -18x^2y^4/6x^7y^2

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  1. Walleye
    • 4 years ago
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    \[-18x^2y^4/6x^7y^2\]

  2. Walleye
    • 4 years ago
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    is this what you mean

  3. Sinz
    • 4 years ago
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    YES

  4. Sinz
    • 4 years ago
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    Sorry for the caps

  5. Walleye
    • 4 years ago
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    ok great think of it like this \[-18x*x*y*y*y*y/6x*x*x*x*x*x*x*y*y\]

  6. Walleye
    • 4 years ago
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    I know it looks long but now think about canceling

  7. Sinz
    • 4 years ago
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    okay so when dividing you subtract then right

  8. Walleye
    • 4 years ago
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    yes if you had X^3/x^2 you would have x^3-2

  9. Sinz
    • 4 years ago
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    okay was just trying to figure out how the division part worked for exponents so now I divide -18 from 6 to get 3 right then subtract the like exponents

  10. Walleye
    • 4 years ago
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    yes! but you have one little error. do you see it?

  11. Sinz
    • 4 years ago
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    the negative sign

  12. Walleye
    • 4 years ago
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    yep! good work!

  13. Sinz
    • 4 years ago
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    well from the way the question was worded it said to rewrite with positive exponents

  14. Walleye
    • 4 years ago
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    ah yes the exponent means the power. as in x^5 5 is the exponinet -3 is called the coeffecient in you problem

  15. Sinz
    • 4 years ago
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    okay so I was right when I said the problem I got -3x^5y^2 but it doesn't look right to me

  16. Walleye
    • 4 years ago
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    I see what you mean the simplied version will be-3x^-5y^2

  17. Walleye
    • 4 years ago
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    like this \[-3y^2 / x^5\]

  18. Sinz
    • 4 years ago
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    okay is that the way it is supposed to look

  19. Sinz
    • 4 years ago
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    I wasn't sure

  20. Walleye
    • 4 years ago
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    yep! simpfied here means that you did all of the division you could

  21. Walleye
    • 4 years ago
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    remember that x^-3 = 1/(x^3) for example

  22. Sinz
    • 4 years ago
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    one other question when you multiply 2 negatives you get 2 positives correct?

  23. Sinz
    • 4 years ago
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    okay that's right

  24. Walleye
    • 4 years ago
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    Negative * negative = postive

  25. Sinz
    • 4 years ago
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    okay thanks

  26. Walleye
    • 4 years ago
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    np!

  27. Sinz
    • 4 years ago
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    Thank you again for helping me to answer my problem

  28. Sinz
    • 4 years ago
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    I gave you a medal and fanned you also

  29. Walleye
    • 4 years ago
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    No problem anytime!

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