Multiple choice

What is (5z + 6) (5z - 5) in expanded form?

  1. 25z2 - 5z + 30

  2. 25z2 - 5z - 30

  3. 25z2 + 5z + 30

  4. 25z2 + 5z - 30
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

(5z + 6) (5z - 5) = 25z2 - 25z + 30z - 30 (Using Foil) = 25z2 + 5z - 30

Keep practicing — related questions