Question 367560
Set each of the factors () =to 30 Then solve for x...Those will be the roots where the graph crosses the x-axis.

2x+3=30 ,  2x+5=30  ,  x-1=30  ,  x-2=30
x=27/2     x=25/2      x=31        x=32

So your roots are at x=(27/2),(25/2),31,32