1. **State the problem:** Solve the equation $$\frac{5}{24 - 3x} = -6x$$.
2. **Formula and rules:** To solve for $x$, multiply both sides by the denominator to clear the fraction, then solve the resulting equation.
3. **Multiply both sides by $24 - 3x$:**
$$5 = -6x(24 - 3x)$$
4. **Distribute $-6x$:**
$$5 = -144x + 18x^2$$
5. **Rearrange to standard quadratic form:**
$$18x^2 - 144x - 5 = 0$$
6. **Simplify by dividing all terms by the greatest common factor 1 (no change here):**
$$18x^2 - 144x - 5 = 0$$
7. **Use the quadratic formula:**
$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$ where $a=18$, $b=-144$, $c=-5$.
8. **Calculate the discriminant:**
$$b^2 - 4ac = (-144)^2 - 4(18)(-5) = 20736 + 360 = 21096$$
9. **Calculate the square root:**
$$\sqrt{21096} \approx 145.26$$
10. **Calculate the two solutions:**
$$x = \frac{144 \pm 145.26}{36}$$
11. **First solution:**
$$x_1 = \frac{144 + 145.26}{36} = \frac{289.26}{36} \approx 8.035$$
12. **Second solution:**
$$x_2 = \frac{144 - 145.26}{36} = \frac{-1.26}{36} \approx -0.035$$
13. **Check for restrictions:** The denominator $24 - 3x \neq 0$ so $x \neq 8$.
14. **Conclusion:**
The solution $x \approx 8.035$ is invalid because it makes the denominator close to zero and is outside the domain.
The valid solution is:
$$\boxed{x \approx -0.035}$$
Solve Rational 498D16
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