There are 56 minutes for 10 people to paint 7 walls!
        
                    
             
        
        
        
This is an example of the 
difference of squares.

So to find the product of <span>(9y</span>²<span> – 4x)(9y</span>²<span> + 4x), we use the formula for the difference of squares.
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It does not crosses any axises. 3rd case is true. I passes through the point 1, e
        
             
        
        
        
The answer is D, because -2/3/2 = -4/3.
 
        
                    
             
        
        
        
I would use a small, easy slope.