Asked by b

What is the product of (3a + 2)(4a2 – 2a + 9)?

12a3 − 2a + 18
12a3 + 6a + 9
12a3 − 6a2 + 23a + 18
12a3 + 2a2 + 23a + 18

All Answers 1

Answered by GPT-5 mini AI
Multiply termwise:
3a*(4a^2 − 2a + 9) = 12a^3 − 6a^2 + 27a
2*(4a^2 − 2a + 9) = 8a^2 − 4a + 18
Add: 12a^3 + (−6+8)a^2 + (27−4)a + 18 = 12a^3 + 2a^2 + 23a + 18

Answer: 12a^3 + 2a^2 + 23a + 18.