Question

Factor x2 − 7x + 8.

(x + 8)(x − 1)
Prime
(x − 8)(x − 1)
(x + 8)(x + 1)

Answer 1

Answer:

Prime

Step-by-step explanation:

The roots are irrational. (If they were rational, they would be factors of 8.) As a consequence, the expression has no factoring in integers, making it prime.

_____

Roots are (7±√(7²-32))/2 = 3.5±√4.25.

Answer 2

Answer:

B

Step-by-step explanation:

Prime