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Question
Divide −72a4b5c8 by −9a2b2c3.
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Solution
\[\frac{- 72 a^4 b^5 c^8}{- 9 a^2 b^2 c^3}\]
\[ = \frac{- 72 \times a \times a \times a \times a \times b \times b \times b \times b \times b \times c \times c \times c \times c \times c \times c \times c \times c}{- 9 \times a \times a \times b \times b \times c \times c \times c}\]
\[ = 8 a^{(4 - 2)} b^{(5 - 2)} c^{(8 - 3)} \]
\[ = 8 a^2 b^3 c^5\]
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