Factor. x2 + 8x + 12

(x - 12)(x - 1)
(x + 12)(x + 1)
(x + 6) (x + 2)
(x – 6)(x - 2)

The lengths of two sides of a triangle are 9 and 15. what can be said about the length of the third side? a. it must be greater than or equal to 6 and less than 24. b. it must be greater than or equal to 6 and at most 24. c. it must be greater than 6 and less than 24. d. it must be greater than 6 and at most 24.