what is (1/2x+5)^2
=(x/2+5)^2
= (1/2x + 5) ( 1/2x + 5) = 1/4 x^2 + 5x + 25 IF 1/2x means 1/2 (x)
= (1/(2x) + 5 ) (1/(2x) +5) = 1/(4x^2) + 10/(2x) + 25 = 1/(4x^2) + 5/x +25 IF 1/(2x) is what you meant
