Multiple choice

What is (u - v) (u - v) in expanded form?

  1. u2 - uv + v2

  2. u2 - 2uv + v2

  3. u2 + 2uv + v2

  4. u2 - 2uv - v2

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

(u - v) (u - v) = u2 - uv - uv + v2 (Using Foil) = u2 - 2uv + v2