Solve Equation A24A15
1. **State the problem:** Solve the equation $$x + \sqrt{11x + 44} = -4$$ for $x$.
2. **Isolate the square root term:** Move $x$ to the right side:
$$\sqrt{11x + 44} = -4 - x$$
3. **Important rule:** The expression inside the square root must be non-negative, and the right side must also be non-negative because a square root cannot equal a negative number. So,
$$11x + 44 \geq 0 \quad \text{and} \quad -4 - x \geq 0$$
4. **Solve inequalities:**
$$11x + 44 \geq 0 \Rightarrow x \geq -4$$
$$-4 - x \geq 0 \Rightarrow x \leq -4$$
5. **Combine inequalities:** The only possible $x$ is $x = -4$.
6. **Check $x = -4$ in the original equation:**
$$-4 + \sqrt{11(-4) + 44} = -4 + \sqrt{-44 + 44} = -4 + 0 = -4$$
This matches the right side.
7. **Conclusion:** The solution is
$$x = -4$$