Answer
See below.
Work Step by Step
According to the exercise:
$x_1=f(x_0)=f(-1)=(-1)^2-5=-4$
$x_2=f(x_1)=f(-4)=(-4)^2-5=11$
$x_3=f(x_2)=f(11)=(11)^2-5=116$
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