Multiple choice

What is (4a + 2) (6a2 - a + 2) in expanded form?

  1. 24a3 + 8a2 + 6a + 4

  2. 24a3 - 8a2 + 6a + 4

  3. 24a3 - 8a2 + 4a + 6

  4. 24a3 - 8a2 - 6a + 4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

(4a + 2) (6a2 - a + 2) = 24a3 - 4a2 + 8a + 12a2 - 2a + 4 (Expanding brackets) = 24a3 - 4a2 + 12a2 + 8a - 2a + 4 = 24a3 + 8a2 + 6a + 4

Keep practicing — related questions