Find the Domain x^2-21x+1

Problem

x2−21*x+1

Solution

1. Identify the type of function given. The expression x2−21*x+1 is a polynomial function, specifically a quadratic.

2. Determine if there are any restrictions on the variable x Polynomials do not contain denominators that could be zero or square roots of negative numbers.

3. Conclude that the function is defined for all real numbers because there are no values of x that would make the expression undefined.

Final Answer

Domain: *(−∞,∞)

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