Question

A function f is defined by f(x) = 3 - 2x. Find
x such that f(x?)= (f(x))?.​

Answer 1

f(x)=3-2x

if

f(x)=f(f(x))

now f(f(x))=3-2(3-2x)

=3-6+4x

= 4x-3

f(x)=f(f(x))

3-2x=4x-3

6=6x

x=1

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Answer 2

your answer is in the given attachment

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