Verified Answer :

Amazing81

The answer is 12a^3 + 2a^2 + 23a + 18 

Or in other words, the answer is D

IsrarAwan

The correct answer is: Option (d) \(12a^3 +2a^2 + 23a + 18\)

Explanation:

Given expression:

\((3a+2)(4a^2-2a+9) \\ Simplify: \\ 3a(4a^2-2a+9) + 2(4a^2-2a+9) \\ 12a^3 - 6a^2 + 27a + 8a^2 - 4a +18 \\ 12a^3 +2a^2 + 23a + 18\)


Hence the correct answer is: Option (d) \(12a^3 +2a^2 + 23a + 18\)

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