Solve by Extracting Square Roots $x ^ { 2 } - 3 x$

question 58

Multiple Choice

Solve by extracting square roots.
-x $x ^ { 2 } - 3 x$

• A) \(9 ; ( x - 3 ) ^ { 2 }\)
• B) \(\frac { 9 } { 4 } ; \left( x + \frac { 3 } { 2 } \right) ^ { 2 }\)
• C) \(\frac { 9 } { 4 } ; \left( x - \frac { 3 } { 2 } \right) ^ { 2 }\)
• D) \(0 ; \left( x - \frac { 3 } { 2 } \right) ^ { 2 }\)

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Definitions:

Probability Distribution

A mathematical function representing the complete set of possible values and their chances of occurrence for a random variable within a certain limit.

Binomial Random Variable

A type of random variable that arises from processes that consist of a fixed number of trials, each of which leads to a binary outcome (success or failure).

Variance

A measure of the dispersion or spread of a set of data points around their mean.

Standard Deviation

An indicator of the degree of spread or variability among a collection of numbers.