Answer:
That is the commutative property.
Using the fixed point concept, it is found that f(x) has 3 real fixed points.
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The fixed points of a function f(x) are the values of x for which:
In this question:
Then
Applying subtraction of perfect squares,
Again,
Then
There are 3 real fixed points, and .
A similar problem is given at brainly.com/question/22560442