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Mathematics

Simplify and express as positive indices:

[32x5243y5]15\Big[\dfrac{32x^{-5}}{243y^{-5}}\Big]^{\dfrac{-1}{5}}

Exponents

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Answer

[32x5243y5]15=[25x535y5]15=[2x13y1]5×15=[2x13y1]1=[2y3x]1=[3x2y]\Big[\dfrac{32x^{-5}}{243y^{-5}}\Big]^{\dfrac{-1}{5}}\\[1em] = \Big[\dfrac{2^{5}x^{-5}}{3^5y^{-5}}\Big]^{\dfrac{-1}{5}}\\[1em] = \Big[\dfrac{2x^{-1}}{3y^{-1}}\Big]^{5\times\dfrac{-1}{5}}\\[1em] = \Big[\dfrac{2x^{-1}}{3y^{-1}}\Big]^{-1}\\[1em] = \Big[\dfrac{2y}{3x}\Big]^{-1}\\[1em] = \Big[\dfrac{3x}{2y}\Big]

[32x5243y5]15=[3x2y]\Big[\dfrac{32x^{-5}}{243y^{-5}}\Big]^{\dfrac{-1}{5}}= \Big[\dfrac{3x}{2y}\Big]

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