Write the partial fraction decomposition of the given rational expression. x + 12 x²(x²+6) x + 12 ²(x²+6) Use integers or fractions for any numbers in the expression.) C...

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**Title:** Partial Fraction Decomposition of a Rational Expression

**Problem Statement:**

Write the partial fraction decomposition of the given rational expression:

\[
\frac{x + 12}{x^2(x^2 + 6)}
\]

---

**Solution:**

Determine the partial fraction decomposition of:

\[
\frac{x + 12}{x^2(x^2 + 6)} = \text{[blank box for answers]}
\]

*(Use integers or fractions for any numbers in the expression.)*

---

**Explanation:**

The goal is to express the rational expression as a sum of simpler fractions. The given expression has a quadratic polynomial in the denominator, which is factored into \(x^2\) and \(x^2 + 6\).

### Steps for Decomposition:

1. **Identify Factors:** The denominator \(x^2(x^2 + 6)\) consists of a repeated linear factor \(x^2\) and an irreducible quadratic factor \(x^2 + 6\).

2. **Set Up Partial Fractions:**

   \[
   \frac{x + 12}{x^2(x^2 + 6)} = \frac{A}{x} + \frac{B}{x^2} + \frac{Cx + D}{x^2 + 6}
   \]

3. **Clear the Denominator:** Multiply through by the common denominator \(x^2(x^2 + 6)\) to eliminate the fractions.

4. **Solve for Coefficients:** Equate coefficients of like terms on both sides of the equation to solve for \(A\), \(B\), \(C\), and \(D\).

This method will lead to the values of \(A\), \(B\), \(C\), and \(D\), which when substituted back, will provide the partial fraction decomposition of the original expression.
Transcribed Image Text:**Title:** Partial Fraction Decomposition of a Rational Expression **Problem Statement:** Write the partial fraction decomposition of the given rational expression: \[ \frac{x + 12}{x^2(x^2 + 6)} \] --- **Solution:** Determine the partial fraction decomposition of: \[ \frac{x + 12}{x^2(x^2 + 6)} = \text{[blank box for answers]} \] *(Use integers or fractions for any numbers in the expression.)* --- **Explanation:** The goal is to express the rational expression as a sum of simpler fractions. The given expression has a quadratic polynomial in the denominator, which is factored into \(x^2\) and \(x^2 + 6\). ### Steps for Decomposition: 1. **Identify Factors:** The denominator \(x^2(x^2 + 6)\) consists of a repeated linear factor \(x^2\) and an irreducible quadratic factor \(x^2 + 6\). 2. **Set Up Partial Fractions:** \[ \frac{x + 12}{x^2(x^2 + 6)} = \frac{A}{x} + \frac{B}{x^2} + \frac{Cx + D}{x^2 + 6} \] 3. **Clear the Denominator:** Multiply through by the common denominator \(x^2(x^2 + 6)\) to eliminate the fractions. 4. **Solve for Coefficients:** Equate coefficients of like terms on both sides of the equation to solve for \(A\), \(B\), \(C\), and \(D\). This method will lead to the values of \(A\), \(B\), \(C\), and \(D\), which when substituted back, will provide the partial fraction decomposition of the original expression.
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