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19 May, 07:46

Which expression is equivalent to the one below? 5^x

Answers (multiple choice)

A. 5*5^ (x-1)

B. 15^x/3

C. 15^x/3^x

D. (15/3) ^x

E. 5*5^ (x+1)

F. x^5

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Answers (1)
  1. 19 May, 08:05
    0
    A, B and D.

    Step-by-step explanation:

    A: because 5 * 5^ (x-1) = 5^ (x - 1 + 1) = 5^x.

    B. 15^x / 3 = 5^x

    D. (15/3) ^x = 5^x.

    (Note C = 5, E = 5^ (x+2) and x^5 not = 5^x.)
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