1. **State the problem:** Add and simplify the rational expressions $$\frac{6}{x+5} + \frac{x+65}{x^2-25}$$.
2. **Identify the denominators:** The denominators are $x+5$ and $x^2-25$.
3. **Factor the second denominator:** Note that $$x^2-25 = (x+5)(x-5)$$.
4. **Find the common denominator:** The least common denominator (LCD) is $$(x+5)(x-5)$$.
5. **Rewrite each fraction with the LCD:**
- The first fraction $$\frac{6}{x+5}$$ needs to be multiplied by $$\frac{x-5}{x-5}$$:
$$\frac{6}{x+5} = \frac{6(x-5)}{(x+5)(x-5)}$$
- The second fraction already has the LCD:
$$\frac{x+65}{(x+5)(x-5)}$$
6. **Add the numerators:**
$$\frac{6(x-5)}{(x+5)(x-5)} + \frac{x+65}{(x+5)(x-5)} = \frac{6(x-5) + (x+65)}{(x+5)(x-5)}$$
7. **Expand and simplify the numerator:**
$$6(x-5) + (x+65) = 6x - 30 + x + 65 = 7x + 35$$
8. **Factor the numerator:**
$$7x + 35 = 7(x + 5)$$
9. **Write the full expression:**
$$\frac{7(x+5)}{(x+5)(x-5)}$$
10. **Cancel the common factor $(x+5)$:**
$$\frac{7\cancel{(x+5)}}{\cancel{(x+5)}(x-5)} = \frac{7}{x-5}$$
**Final answer:** $$\boxed{\frac{7}{x-5}}$$
Add Rational Expressions 764A49
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