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17 January, 16:18

4. 5^4 x 5^7

A. 125^11

B. 15^11

C. 5^28

D. 5^11

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Answers (1)
  1. 17 January, 16:32
    0
    When multiply 2 numbers raised to a power,

    Just all the two exponents

    4 + 7 = 11

    So 5^4 x 5^7 would become D. 5^11
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