Find the Domain a^2-8a-4

Problem

a2−8*a−4

Solution

1. Identify the type of expression provided. The expression a2−8*a−4 is a polynomial.

2. Determine if there are any restrictions on the variable a Polynomials do not contain divisions by zero, square roots of negative numbers, or logarithms of non-positive numbers.

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

4. Express the domain in interval notation or as a set of all real numbers.

Final Answer

Domain: *(−∞,∞)

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