Factor 10s^3+25s^2+8s+20
(2s+5)(5s^2+4)
I hope that's help again !
2x^3 + 2x^2 + 5x + 1/ x^2
That means its downgraded to 1/20 of actual height, let actual height is x. Then
(1/20) * x = 8, x = 20 * 8 = 160, actual height = 160 inch
160 inch = 160/12 feet = 13 1/3 feet or 13.333 feet.