5² - 2² =

(a)  

10² - 5² =

(a)  

4² + 3² =

(a)  

10² + 10² =

(a)  

8² - 6² =

(a)  

7²+ 2² =

(a)  

4² + 2² =

(a)  

5² - 4² =

(a)  

5² - 3² =

(a)