1/5+1/7=12/35 of one room painted per hour
1 room/(12/35)=35/12 hours per room working together
☺☺☺☺
let n take values 1,2,3... infinity
then the sequence is:
(0,1/n)
for every number greater than zero there exist such n that (0,1/n) does not contain that number.
1. Distributive Property.
2.Congruence Property.
3.Subtraction Property.
4.Division Property.
ANSWER: 8x^4 +64x^3 + 98x^2 +30x
Work in image.