Oscar chose A as the correct answer. How did he get that answer?
2 answers:
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The domain of a function is the set of input values the function can take
The domain is all set of real numbers
<h3>How to determine the domain</h3>
The expression is given as:
Factorize the numerator of the expression
Simplify: Cancel out the common terms
The above expression can take any value of x.
Hence, the domain is all set of real numbers
Read more about domain at: