If you meant 2x + 2x + 1 = 17: x = 4
Solve for x by simplifying both sides of the equation, then isolating the variable.<span> 
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If you meant <span>x2 + 2x + 1 = 17:</span> <span>x ≈ 3.1231056,−5.1231056x</span>
Solve the equation for x by finding a, b, and c of the quadratic then applying the quadratic formula. <span><span>x = −1 ± <span>√17</span></span>x</span>
        
                    
             
        
        
        
Answer: Your answer is 17/33! Hope this helps. If you need anymore help let me know!
 
        
                    
             
        
        
        
Step-by-step explanation:commutative property
hope it helps
 
        
                    
             
        
        
        
If the box if cubed for volume then lbh is 25x25x100=62500 cm ^3...if that's right. hope it helps any.