Question 685936
A = x^2


A = (2s+5)^2


A = (2s+5)(2s+5)


A = 2s(2s+5)+5(2s+5)


A = 4s^2+10s+10s+25


A = 4s^2+20s+25


So the area is 4s^2+20s+25 square units.