Question

1600=1156*(1-P100)^2- помогите решить

Answer 1

1156*(1 - p/100)^2 = 1600
(1 - p/100)^2 = 1600/1156
(1 - p/100)^2  = 400/289 
(1 - p/100)^2 = (20/17)^2 
(1 - p/100)^2 - (20/17)^2 = 0 
(1 - p/100 - 20/17)(1 - p/100 + 20/17) = 0

#1
1 - p/100 - 20/17 = 0
- p/100 - 20/17 + 17/17 = 0 
- p/100 - 3/17 = 0 
- p/100 = 3/17
p/100 = - 3/17
p = - 300/17
p = - 17 целых 11/17

#2
1 - p/100 + 20/17 = 0 
- p/100 + 37/17 = 0 
- p/100 = - 37/17
p/100 = 37/17
p = 37/17 * 100
p = 3700/17 
p = 217 целых 11/17

Ответ
- 300/17
3700/17