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i) \( \left(2 x^{-2} y^{3}\right)^{3} \)ii) \( (625)^{\frac{-1}{4}} \)

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Simplify:

(i) (2x-2 y3)3

(ii) (625)-1/4

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1 Answer

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(i) (2x-2 y3)3 = 23(x-2)3 (y3)3

 = 8x-6y9

 = 8 \(\frac{y^9}{x^6}\) 

(ii) (625)-1/4 = (54)-1/4 = 5-1 = 1/5.

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