Subjects algebra

Rational Equation Cedfff

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Question: User: 14/x^2-4 -12/x+2 = 6/2-x
1. **State the problem:** Solve the equation $$\frac{14}{x^2-4} - \frac{12}{x+2} = \frac{6}{2-x}$$. 2. **Rewrite and analyze:** Note that $$x^2-4 = (x-2)(x+2)$$ and $$2-x = -(x-2)$$. 3. **Rewrite the equation using these factorizations:** $$\frac{14}{(x-2)(x+2)} - \frac{12}{x+2} = \frac{6}{-(x-2)} = -\frac{6}{x-2}$$. 4. **Find a common denominator:** The common denominator is $$(x-2)(x+2)$$. 5. **Rewrite each term with the common denominator:** $$\frac{14}{(x-2)(x+2)} - \frac{12(x-2)}{(x+2)(x-2)} = -\frac{6(x+2)}{(x-2)(x+2)}$$. 6. **Combine all terms over the common denominator:** $$\frac{14 - 12(x-2) + 6(x+2)}{(x-2)(x+2)} = 0$$. 7. **Simplify the numerator:** $$14 - 12x + 24 + 6x + 12 = 14 + 24 + 12 - 12x + 6x = 50 - 6x$$. 8. **Set numerator equal to zero:** $$50 - 6x = 0$$. 9. **Solve for $x$:** $$6x = 50$$ $$x = \frac{50}{6} = \frac{25}{3}$$. 10. **Check for restrictions:** Denominators cannot be zero, so $x \neq 2$ and $x \neq -2$. 11. **Final answer:** $$x = \frac{25}{3}$$ is the solution.