A technician apprentice is learning to simplify formulas for a mechanical system. They need to calculate the difference between two expressions: $\frac{4}{x^2-4} - \frac{3}{x^2-x-2}$. To ensure the calculation is accurate, the apprentice must follow a specific sequence of algebraic steps. Arrange the following steps in the correct order to complete the subtraction.

A logistics analyst is streamlining a calculation involving two efficiency ratios: $\frac{4}{x^2-4}$ and $\frac{3}{x^2-x-2}$. To combine these ratios through subtraction, the analyst must first identify the Least Common Denominator (LCD). Based on the standard procedure for rational expressions, what is the LCD for this specific problem?

A junior systems engineer is documenting a mathematical model for data throughput variance. The model requires calculating the difference between two rational expressions: $\frac{4}{x^2-4} - \frac{3}{x^2-x-2}$. To ensure the documentation is accurate, match each component of the calculation with its correct algebraic representation.

A technical analyst is documenting a performance efficiency model that uses the expression $\frac{4}{x^2-4} - \frac{3}{x^2-x-2}$. To begin the subtraction process, the analyst must recall the factored form of the first denominator. Using the difference of squares identity, the denominator $x^2 - 4$ is factored into $(x - 2)$ and ____.

A quality assurance specialist is auditing a formula used to compare two system failure rates, given by the expression $\frac{4}{x^2-4} - \frac{3}{x^2-x-2}$. In the final step of simplifying this subtracted expression, the factor $(x + 2)$ is canceled from both the numerator and the denominator.