Answer:
(-x)(x^2 + 4x + 5)
Step-by-step explanation:
You have to factor out the -x from the rest of the expression.
(i) The bearing of B from A and angle x are supplementary, then:

(ii)
From the above diagram, the bearing angle of A from B is:

(iii)
From the above diagram, the bearing angle of C from B is:

(iv)
Applying the law of cosines with the sides AB = 145m and CB = 240 m, and the angle ABC = 68°, the distance AC is:
4,8,12,16,20,24,28,32,36,40
5 1/4
(or 5.25)
typing this but bc it says your answer must be more than 20 characters lol
(-2,infinite]
negative two and the infinite symbol