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Write in scientific notation : (500000)5 x (3000)3

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(500000)5 x (3000)3 = (5.0 x 105)3 x (3.0 x 103)3

= (5.0)2 x (105)2 x (3.0)3 x (103)3

= 25 x 1010 x 27 x 10= 675 x 1019

= 675.0 x 1019 = 6.75 x 102 x 1019 = 6.75 x 1021

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