I'm assuming you're asking about negative or positive signs here. When I factor binomials, it depends on what would make factoring simpler for me. And how you're factoring the binomial too. 
More often than not, it's going to be positive. For example, 4x^2 - 2x = 0. That would factor out to be 2x(2x-1) = 0. The sign outside is going to be positive because it's simpler to solve that way. Here, x is equal to 0 and equal to 1/2. Taking out a negative in this case would complicate the solving process.
        
             
        
        
        
Answer: 333.33m²
Step-by-step explanation:
Since we are informed that 15 litres of paint covers an area of 250 m2, the the area that 1 liter of paint will cover will be:
= 250m²/15
= 16.666667m²
Therefore, the area that 20 litres of paint will cover will be:
= 16.666667m² × 20
= 333.33m²
 
        
             
        
        
        
A. $25
b. $12
c. 12x+25
d. $289
        
             
        
        
        
180(n-2)
N is number of sides
Nonagon has 9 sides.
9-2=7
7x180=1260
        
             
        
        
        
Answer:
y=mx+b 
Step-by-step explanation:
graph isn't their