1. **State the problem:** Solve the equation $$(2^x)^2 + 2^x - 6 = 0$$ for $x$.
2. **Rewrite the equation:** Note that $$(2^x)^2 = 2^{2x}$$, so the equation becomes:
$$2^{2x} + 2^x - 6 = 0$$
3. **Substitution:** Let $$y = 2^x$$. Then the equation becomes:
$$y^2 + y - 6 = 0$$
4. **Solve the quadratic equation:** Use the quadratic formula:
$$y = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
where $$a=1$$, $$b=1$$, and $$c=-6$$.
Calculate the discriminant:
$$\Delta = 1^2 - 4 \times 1 \times (-6) = 1 + 24 = 25$$
So,
$$y = \frac{-1 \pm \sqrt{25}}{2} = \frac{-1 \pm 5}{2}$$
5. **Find the roots:**
- $$y_1 = \frac{-1 + 5}{2} = \frac{4}{2} = 2$$
- $$y_2 = \frac{-1 - 5}{2} = \frac{-6}{2} = -3$$
6. **Back-substitute for $x$:** Recall $$y = 2^x$$.
- For $$y_1 = 2$$:
$$2^x = 2$$
Since $$2^1 = 2$$, we have $$x = 1$$.
- For $$y_2 = -3$$:
$$2^x = -3$$
This is impossible because $$2^x > 0$$ for all real $$x$$.
7. **Final solution:**
$$\boxed{x = 1}$$
Exponential Equation 26287F
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