Solve by Completing the Square $$x ^ { 2 } + 4 x = 7$$

question 81

Multiple Choice

Solve by completing the square.
- $$x ^ { 2 } + 4 x = 7$$

• A) \(2 + \sqrt { 11 }\)
• B) \(- 1 \pm \sqrt { 11 }\)
• C) \(- 2 \pm \sqrt { 11 }\)
• D) \(- 2 \pm 2 \sqrt { 11 }\)

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Definitions:

N-propyl-4-methyl-3-octanamine

A chemical compound, structured as an amine, where a propyl group is bonded to the nitrogen of an octanamine backbone with a methyl substitution at the fourth position.

Systematic Name

The formal and standardized naming of chemical substances based on their molecular structure and functional groups.

Compound

A substance made up of two or more elements chemically bonded together in fixed proportions.

Systematic Name

The formal name of a chemical substance, based on a set of standard rules for naming molecules as established by the International Union of Pure and Applied Chemistry (IUPAC).