Multiple choice

Which of the following expressions is equivalent to the expression 7 × (-14) + 6 × (-7)?

  1. (-7) × 8

  2. (-7) × 20

  3. (14) × (-20)

  4. (14) × (-8)

  5. (13) × (-21)

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

The given expression is 7 × (-14) + 6 × (-7)7 × (-14) + 6 × (-7) = (-7) × 14 + 6 × (-7) = (-7) × 14 + (-7) × 6 [Commutative property of multiplication] = (-7) × (14 + 6) [Distributive property of multiplication over addition] = (-7) × 20 Hence, the option 2, 7 × (-14) + 6 × (-7) = (-7) × 20 is correct. This answer is correct.