Explanation

2 x 3 = 49 

(2)^2 = 4 and (3)^2 = 9

similarly, 

3 x 4 = 916

(3)^2 = 9

(4)^2 = 16 ,

similarly

2 x 4 = 416

(2)^2 = 4 

(4)^2 = 16 

ND18-9-2023