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3 April, 21:11

Simplify each expression. justify each step. (5n • 9) • 2n

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Answers (2)
  1. 3 April, 23:43
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    5n * 9 = 45n

    45n * 2n = 90n^2

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  2. 4 April, 00:55
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    10n^2·18n is your answer

    1. 5n·2n = 10n^2

    2. 9·2n = 18n

    3. 10n^2·18n=10n^2·18n
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