8 and 7 are both a factor of 56.
Answer:

Step-by-step explanation:
From the question we are told that:
Force 1 
Force 2 
Force 3 
Direction 1
Direction 2 
Direction 3 
Generally Resolving forces to X axis is mathematically given by


Generally Resolving forces to Y axis is mathematically given by


Generally the equation for Resultant force R is mathematically given by



Y= 2 (x^2-3x+2)
y= 2 (x-1) (x-2)
x=2 and x=1