Perform the Indicated Operations and Simplify the Result $$\frac { \frac { 3 } { x ^ { 2 } - 4 x - 21 } - \frac { 1 } { x - 7 } } { \frac { 1 } { x + 3 } + 1 }$$

question 251

Multiple Choice

Perform the indicated operations and simplify the result. Leave the answer in factored form.
- $$\frac { \frac { 3 } { x ^ { 2 } - 4 x - 21 } - \frac { 1 } { x - 7 } } { \frac { 1 } { x + 3 } + 1 }$$

• A) \(\frac { x } { x ^ { 2 } - 5 x - 28 }\)
• B) \(- 1\)
• C) \(= \frac { x } { x ^ { 2 } - 3 x - 28 }\)
• D) \(- \frac { x } { x ^ { 2 } - 4 x - 21 }\)

---

Definitions:

ICD-9-CM

International Classification of Diseases, Ninth Revision, Clinical Modification; a medical classification list for coding diseases, symptoms, and procedures.

ICD-10-CM

International Classification of Diseases, Tenth Revision, Clinical Modification; a system used by healthcare providers to classify and code all diagnoses, symptoms, and procedures.

Always At Least 3 Characters

A requirement in data input or programming that asserts a string or input must contain a minimum of three characters.

ICD-9-CM

The International Classification of Diseases, Ninth Revision, Clinical Modification, a system used in the United States for coding and classifying morbidity data until replaced by ICD-10-CM.