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Express each of the following numbers as a product of powers of their prime factors. (i)432  (ii) 648 (iii)540

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  9. Simplify: (i)3^2xx10^4 (ii) 2^4xx3^2 (iii)5^2xx3^4

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  11. Simplify: (i)(3/4)^2 (ii) ((-2)/3)^4 (iii)((-4)/5)^5

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