Multiple choice

What is (2a - 1) (8a - 5) in expanded form?

  1. 16a2 + 18a - 5

  2. 16a2 - 18a + 5

  3. 16a2 + 18a + 5

  4. 16a2 - 18a - 5

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

(2a - 1) (8a - 5) = 16a2 - 10a - 8a + 5 (Using Foil) = 16a2 - 18a + 5