Solution: Compute $ b_1 = 1 $. Then $ b_2 = 1 - \frac1^55 = \frac45 $. Next, $ b_3 = \frac45 - \frac\left(\frac45\right)^55 = \frac45 - \frac10243125 = \frac2500 - 10243125 = \frac14763125 $. Simplify: $ \frac14763125 $ (already reduced). \boxed\dfrac14763125 - Veritas Home Health