Our two binomials are (X-5)(X-7)
If we FOIL those two terms [x*x = x2; x*-7 = -7x; x*-5 = -5x; -5*-7 = 35] and combine the like terms, we're left with one of many quadratic function
Answer 
x2-12x+35
        
             
        
        
        
Answer:
14.7 (Because you asked for no units)
Step-by-step explanation:
The volume of this triangular prism is 1/2 BHL
0.5 * 3.5 * 2 * 4.2 = 14.7 ft^3
 
        
             
        
        
        
Step 1 ) Move all terms right side of the equation.



Step 2 ) Apply quadratic formula. (Note: There are 2 solutions)



 ,
 ,

Step 3 ) Simplify.
 ,
 ,

 ,
,

Since the options only provide one of the answer we found, the answer is...

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- <em>Marlon Nunez</em>
 
        
                    
             
        
        
        
Answer: 66
Step-by-step explanation: Basically you want to find the area of the whole shape and the white shape, which the whole shape is 96 and the white shape is 30, and subtract 96-30=66