Answers

2016-07-16T09:39:59+08:00
(1/2d + 3)² = (½d+3) (½d+3)
                 
1/2 = 0.5

(0.5d+3) (0.5d+3)

= .25 d² + 1.5d + 1. 5d + 9

= .25 d² + 3d + 9

or

= 1/4 
d² + 3d + 9


0
2016-07-16T13:53:38+08:00