First let's rewrite it...
18a^2 + 20a + 8
Factor out a 2
2 (9a^2 + 10a + 4)
        
             
        
        
        
Answer:
If A = 8, B = 5
If A = 20, B = 3
Step-by-step explanation:
4x²(2x³ + 5x)
8x⁵ + 20x³ 
If A = 8, B = 5
If A = 20, B = 3
 
        
             
        
        
        
The answer is 8n2 + 26n + 6
        
                    
             
        
        
        
Answer:
An expression for the area of the pathway is 
Step-by-step explanation:
Length of garden = 9 feet 
Breadth of garden = 12 feet 
Area of garden = 
We are given that you want to buy a pathway around the garden that is x feet
Width of pathway = x feet 
Outer length = 9+x+x=9+2x
Outer breadth = 12+x+x=12+2x
Area of path including garden =
Area of path = Area of path including garden - Area of garden 
Area of path =
Area of path =
Area of path =
Hence an expression for the area of the pathway is 