Value of X and Y is 90 and 26 respectively.
        
             
        
        
        
Answer:
Step-by-step explanation:
a. 4x+4y
b. 8a+24b
c. 6x+33y
d. 63a+54b
e. 3ac+bc
f. 2xy+11yz
 
        
             
        
        
        
It can never be a square.
        
                    
             
        
        
        
Answer:
28 cm^2
Step-by-step explanation:
a^+21^2=36^2
a^2+441=1225
a=28
 
        
             
        
        
        
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