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8-47.
  1. Rewrite each of the expressions below in a simpler form using exponents. Homework Help ✎

    1. 4 · 4 · 5 · 5 · 5

    2. 3 · 3 · 3 · 3 · 3 · y · y

    3. (6x)(6x)(6x)(6x)

Notice how many 4's there are and how many 5's there are. The exponent refers to how many times a number is multiplied by itself.

Since there are two 4's and three 5's:

42 · 53

Use the same method as in (a).

Use the same method as in (a).

(6x)4