Question 1079150
trees in a row=x
rows=x+4
if we had x+64
rows would be 4
The pair is equal
x(x+4)=4x+256
x^2=256
x=16
16 trees in a row, 20 rows, 320 trees ANSWER
add 64 trees to each row, 80 trees in a row, 4 rows, 320 trees. ANSWER