Find the Domain x^2-4.5x+2.8=0

Problem

x2−4.5*x+2.8=0

Solution

1. Identify the type of expression provided. The expression x2−4.5*x+2.8 is a polynomial function of the form ƒ(x)=a*x2+b*x+c

2. Determine the constraints on the variable x Polynomials are defined for all real numbers because there are no denominators that could be zero and no even-indexed roots of negative numbers.

3. State the domain based on the properties of polynomials. Since there are no restrictions, the domain includes every real number.

Final Answer

Domain: *(−∞,∞)

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