How do you find the domain of #f(x)=x^2-4x+4#?
Usually when you have to find the domain of a function you look for any values of
You look for those values in:
Zeros of denominators in the function's formula.
Values for which expressions under square root sign would be negative.
Values for which expressions under
#log#sign are negative.
In the given example there are no such values, therfore the domain is all real numbers