Answer:
(x - 4)(x - 12)
Step-by-step explanation:
Given
x² - 16x + 48
Consider the factors of the constant term (+ 48) which sum to give the coefficient of the x- term (- 16)
The factors are - 4 and - 12, since
- 4 × - 12 = + 48 and - 4 - 12 = - 16 , thus
x² - 16x + 48 = (x - 4)(x - 12)
