Let f(x) = x^2 - 2x. What is the value of f(f(f(-7)))?
Lets do this step by step.
f(-7) = -7^2 - 2(-7) = 49+14 = 63
f(63) = 63^2 - 2(63) = 3969-126 = 3843
f(3843) = 3843^2 - 2(3843) = 14,768,649 - 7686 = 14,760,963
:) :) :)
