Question

step by step explanation pls i beg you​

Answer 1

Step-by-step explanation:

f(x)=x^2-2x

f(2x)=f(x)

(2x)^2-2(2x)=x^2-2x

4x^2-4x=x^2-2x

3x^2=2x

3x^2-2x=0

x(3x-2)=0

x=0 , x=2/3

set A={0,1/3} [since x=R/2]