Multiple choice general knowledge math & puzzles

Which is the correct expansion of these brackets: (x+2)(3x-7)

  1. 3x^2 + x - 14

  2. 3x^2 - 13x - 14

  3. 3x^2 - x - 14

  4. 3x^2 - 14

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

Using the FOIL method: (x+2)(3x-7) = x(3x) + x(-7) + 2(3x) + 2(-7) = 3x² - 7x + 6x - 14 = 3x² - x - 14. Option A has the wrong middle term (+x instead of -x), Option B has -13x instead of -x, and Option D is missing the x term entirely.