Answer:
(x-3)(x+3)(x+2)
Step-by-step explanation:
x^3 + 2x^2 - 9x -18
= x^2(x+2) - 9(x+2)
= (x^2 - 9) (x+2)
= (x+3)(x-3)(x+2)
48 = 4(x-2)
48 = 4x -8
56= 4x
14=x
x-2 = 12
one side is 12 inches long
I think that they will meet in 3 hours and 11 min but I’m not too sure