1. **State the problem:** Simplify the expression $$\frac{2y - 8}{y^2 - 3y - 4} + \frac{3}{y + 1}$$.
2. **Factor the denominators and numerator where possible:**
- Factor the quadratic in the denominator: $$y^2 - 3y - 4 = (y - 4)(y + 1)$$.
- Factor the numerator of the first fraction: $$2y - 8 = 2(y - 4)$$.
3. **Rewrite the expression with factored forms:**
$$\frac{2(y - 4)}{(y - 4)(y + 1)} + \frac{3}{y + 1}$$
4. **Simplify the first fraction by canceling common factors:**
$$\frac{\cancel{2}(y - 4)}{\cancel{(y - 4)}(y + 1)} = \frac{2}{y + 1}$$
5. **Now the expression is:**
$$\frac{2}{y + 1} + \frac{3}{y + 1}$$
6. **Since denominators are the same, add the numerators:**
$$\frac{2 + 3}{y + 1} = \frac{5}{y + 1}$$
7. **Check if this matches any answer choice:**
The simplified form is $$\frac{5}{y + 1}$$, which is not exactly any of the given options.
8. **Re-examine the problem:** The original expression was $$\frac{2y - 8}{y^2 - 3y - 4} + \frac{3}{y + 1}$$.
9. **Try to combine the fractions before canceling:**
Common denominator is $$(y - 4)(y + 1)$$.
10. **Rewrite the second fraction with common denominator:**
$$\frac{3}{y + 1} = \frac{3(y - 4)}{(y + 1)(y - 4)}$$
11. **Add the two fractions:**
$$\frac{2(y - 4) + 3(y - 4)}{(y - 4)(y + 1)} = \frac{(2 + 3)(y - 4)}{(y - 4)(y + 1)} = \frac{5(y - 4)}{(y - 4)(y + 1)}$$
12. **Cancel the common factor $(y - 4)$:**
$$\frac{\cancel{5}(y - 4)}{\cancel{(y - 4)}(y + 1)} = \frac{5}{y + 1}$$
13. **This confirms the simplified form is:**
$$\frac{5}{y + 1}$$
14. **Check the answer choices again:**
None of the options exactly match $$\frac{5}{y + 1}$$.
15. **Check if the given answer choice (2y - 5) / (y^2 - 2y - 3) can be simplified to the same:**
- Factor denominator: $$y^2 - 2y - 3 = (y - 3)(y + 1)$$.
- The numerator is $$2y - 5$$, which does not factor nicely.
16. **Conclusion:** The simplified form of the original expression is $$\frac{5}{y + 1}$$.
**Final answer:** $$\boxed{\frac{5}{y + 1}}$$
Simplify Rational Expression Ed2359
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