Find the Domain of the Expression

question 112

Multiple Choice

Find the domain of the expression. x2 + 7x - 18

• A)all real numbers
• B)all real numbers except x = -9 and x = 2
• C)all real numbers except x = 0
• D)x = -9 or x = 2
• E)x > 0

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Definitions:

Enthymeme

A rhetorical argument that is comprised of a premise and a conclusion but leaves one premise unstated.

Validity

The characteristic of possessing factual or logical robustness; in the realm of logic, it denotes a situation where true premises inevitably lead to a true conclusion.

Unstated Premise

An implicit assumption that is not explicitly expressed within an argument but is necessary for the argument's conclusion to hold.

Syllogism

A type of logic where a conclusion is reached from two provided or assumed statements (premises); a typical structure in logical reasoning.