Find the first three iterates x1,x2,x3 of f(x)=2x-5 for an initial value of x0=3.

Question

x1=f(x0)
=f(1)
=2(1)-5
=-3

2(-3)-5
-6-5
-11

2(-11)-5
-22-5
-27

the first three iterates are: -3,-11,-27