1. **State the problem:** We are given the derivative \( \frac{dy}{dx} = \frac{2x - 6}{x^2 - 2x} \) and asked to find the original function \( y \).
2. **Recall the formula:** To find \( y \), we need to integrate the derivative:
$$ y = \int \frac{2x - 6}{x^2 - 2x} \, dx + C $$
where \( C \) is the constant of integration.
3. **Simplify the integrand:** Factor the denominator:
$$ x^2 - 2x = x(x - 2) $$
Rewrite the integrand:
$$ \frac{2x - 6}{x(x - 2)} $$
4. **Use partial fraction decomposition:** Assume
$$ \frac{2x - 6}{x(x - 2)} = \frac{A}{x} + \frac{B}{x - 2} $$
Multiply both sides by \( x(x - 2) \):
$$ 2x - 6 = A(x - 2) + Bx $$
5. **Find constants \( A \) and \( B \):**
Set \( x = 0 \):
$$ 2(0) - 6 = A(0 - 2) + B(0) \Rightarrow -6 = -2A \Rightarrow A = 3 $$
Set \( x = 2 \):
$$ 2(2) - 6 = A(2 - 2) + B(2) \Rightarrow 4 - 6 = 0 + 2B \Rightarrow -2 = 2B \Rightarrow B = -1 $$
6. **Rewrite the integral:**
$$ y = \int \left( \frac{3}{x} - \frac{1}{x - 2} \right) dx + C $$
7. **Integrate term-by-term:**
$$ y = 3 \int \frac{1}{x} dx - \int \frac{1}{x - 2} dx + C $$
$$ y = 3 \ln|x| - \ln|x - 2| + C $$
8. **Final answer:**
$$ \boxed{y = 3 \ln|x| - \ln|x - 2| + C} $$
This is the original function \( y \) whose derivative is given.
Integrate Rational 20Abdd
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