1. **State the problem:** Simplify the expression $$\frac{3y}{y^2 + 3y - 10} - \frac{5}{2y + 10}$$ and check if it equals $$\frac{5y - 5}{y^2 + 3y - 10}$$.
2. **Factor the denominators:**
- Factor $$y^2 + 3y - 10$$:
$$y^2 + 3y - 10 = (y + 5)(y - 2)$$
- Factor $$2y + 10$$:
$$2y + 10 = 2(y + 5)$$
3. **Rewrite the expression with factored denominators:**
$$\frac{3y}{(y + 5)(y - 2)} - \frac{5}{2(y + 5)}$$
4. **Find common denominator:**
The least common denominator (LCD) is $$2(y + 5)(y - 2)$$.
5. **Rewrite each fraction with the LCD:**
$$\frac{3y \cdot 2}{2(y + 5)(y - 2)} - \frac{5(y - 2)}{2(y + 5)(y - 2)}$$
6. **Simplify numerators:**
$$\frac{6y}{2(y + 5)(y - 2)} - \frac{5y - 10}{2(y + 5)(y - 2)}$$
7. **Combine the fractions:**
$$\frac{6y - (5y - 10)}{2(y + 5)(y - 2)} = \frac{6y - 5y + 10}{2(y + 5)(y - 2)} = \frac{y + 10}{2(y + 5)(y - 2)}$$
8. **Factor numerator if possible:**
$$y + 10 = (y + 5) + 5$$ (no common factor with denominator)
9. **Check if this equals the given option:**
Given option is $$\frac{5y - 5}{y^2 + 3y - 10} = \frac{5(y - 1)}{(y + 5)(y - 2)}$$.
10. **Compare simplified expression and option:**
Our simplified expression is $$\frac{y + 10}{2(y + 5)(y - 2)}$$, which is not equal to $$\frac{5(y - 1)}{(y + 5)(y - 2)}$$.
**Final answer:** The simplified form of the original expression is $$\boxed{\frac{y + 10}{2(y + 5)(y - 2)}}$$, which is not the same as the given option $$\frac{5y - 5}{y^2 + 3y - 10}$$.
Simplify Rational 6Fa0F8
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