CPM Homework Help : MC2 Problem 10-45

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10-45.

Rewrite each of the expressions below in a simpler form using exponents.

$4 · 4 · 5 · 5 · 5$
Hint (a):
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.
Answer (a):
Since there are two 4's and three 5's:
$4^{2} · 5^{3}$

$3 · 3 · 3 · 3 · 3 · y · y$
Hint (b):
Use the same method as in (a).

$(6x)(6x)(6x)(6x)$
Hint (c):
Use the same method as in (a).
Answer (c):
$\left(6x\right)^{4}$

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