Multiple choice

What is (k + 13) (k - 7) in expanded form?

  1. k2 - 6k - 91

  2. k2 + 6k + 91

  3. k2 - 6k + 91

  4. k2 + 6k - 91
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

(k + 13) (k - 7) = k2 - 7k + 13k - 91 (Using Foil) = k2 + 6k - 91

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