Question 209624
The Orchard brothers always plant their apple trees in square arrays, like those illustrated.
 This year they planted 29 more apple trees in their square orchard than last year. 
If the orchard is still square, how many apple trees are there in the orchard this year? 
:
If you add 29 trees and still maintain a square, you add 15 to one side and 14 
to the adjacent side; a square would be: 15^2 = 225 trees this year
;
:
Check by finding last years trees:  225 - 29 = 196; which is 14^2