Answer:
12a^3 + 2a^2 + 23a + 18
Step-by-step explanation:
Please use the " ^ " symbol to represent exponentiation: 4a^2 – 2a + 9.
Now carry out the multiplication as follows:
First, multiply each term in 4a^2 – 2a + 9 by 3a: 12a^3 - 6a^2 + 27a.
Next, multiply each term in 4a^2 – 2a + 9 by 2: 8a^ 2 - 4a + 18.
Now combine like terms:
12a^3 - 6a^2 + 27a
8a^ 2 - 4a + 18
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12a^3 + 2a^2 + 23a + 18
