Alg2.1.6

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(-243)^\frac{1}{3}\,

(-243)^\frac{1}{3}\,

Writing the factors for the number

(-9\cdot27)^\frac{1}{3}\,

(-9\cdot(3^{3})^\frac{1}{3}\,

(-9)^\frac{1}{3}\cdot3\,

Final solution is

3((-3)^\frac{2}{3})\,

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