What are the zeros of this function? HELP

The zeros of this function is when y = 0.
(x, 0) and (x,0)
Looking on the graph
It would be (3,0) and (6,0)
The solution is x = 3, x = 6

The problem is wanting the percent difference. To get the difference, subtract 68 from 125.80
125.80 - 68 =  57.8

Now get the average  of 125.80 and 68
(125.80 + 68) / 2  = 96.9

Now we can get the percent difference by dividing 96.9 by 57.8
57.8 / 96.9 = .596 = 60% difference.