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A rectangular solid has dimensions (a + 2) by (a + 4) by (3a). Find its volume. ​
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A rectangular solid has dimensions (a + 2) by (a + 4) by (3a). Find its volume. ​

User Rajani Kanth
by
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1 Answer

3 votes
3 votes

Answer:

V = 3a³ + 18a² + 24a

Explanation:

The volume (V) is the product of the 3 dimensions, that is

V = 3a(a + 2)(a + 4) ← expand factors using FOIL

= 3a(a² + 6a + 8) ← distribute parenthesis by 3a

= 3a³ + 18a² + 24a

User Stchang
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