What are the zeros (solutions) of f(x)=x^{2}+3x-28f(x)=x2+3x−28 ? Enter the zeros, separated with a comma.

20000 as first it increases by 2500 then by 5000 so next it will increase by 10000

2+1=3 that’s your answer

2(10 - 13x) + 9x = -34x + 6020 - 26x + 9x = -34x + distributive property-17x = -34x + subtraction property (subtracted 20 from both sides)17x = addition property (added 34x to both sides)x = 40/ division property (divided both sides by 17)