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Which expression eqivalent to 27x^-2y^6/3x^5y^2z^9?

  • Math -

    Learn to add/subtract exponents:

    27x^-2y^6/3x^5y^2z^9
    = 27/3 * x^(-2-5) y^(6-2) z^(0-9)
    = 9 x^-7 y^4 z^-9
    = 9y^4/(x^7 z^9)

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