Question

Which of the binomials below is a factor of this trinomial?

x2 - 5x+ 4
O A. X-1
O B. x2 + 4
C. X+4
D. X + 1

Answer 1

A

Explanation:

To factor x² - 5x + 4, we need to find 2 numbers that have a sum of -5 and product of 4; these 2 numbers are -1 and -4 so the factored version is (x - 1)(x - 4). Since x - 4 is not an answer choice but x - 1 is, the answer is A.