Evaluate the limit: lim (x→4) (x² - 16)/(x - 4)
- A. 8 ✓
- B. 9
- C. 16
- D. 4
Correct answer
A. 8
Explanation
Factor the numerator: (x² - 16) = (x-4)(x+4). Cancel the (x-4) terms to get (x+4), then substitute x = 4 to get 8.
A. 8
Factor the numerator: (x² - 16) = (x-4)(x+4). Cancel the (x-4) terms to get (x+4), then substitute x = 4 to get 8.