Algebra Expression Cb17C7
1. Problem: Given the equation $$2x + \frac{2}{x} = 3$$, find the value of $$x^2 + \text{?}$$ where the options are \(\frac{1}{6}, \frac{1}{4}, \frac{1}{3}, \frac{1}{5}\).
2. Formula and rules: We want to find $$x^2 + \frac{1}{x^2}$$. We start from the given equation and use algebraic identities.
3. Start with the given equation:
$$2x + \frac{2}{x} = 3$$
Divide both sides by 2:
$$x + \frac{1}{x} = \frac{3}{2}$$
4. Square both sides to use the identity:
$$\left(x + \frac{1}{x}\right)^2 = x^2 + 2 + \frac{1}{x^2}$$
5. Substitute the value:
$$\left(\frac{3}{2}\right)^2 = x^2 + 2 + \frac{1}{x^2}$$
$$\frac{9}{4} = x^2 + 2 + \frac{1}{x^2}$$
6. Rearrange to find $$x^2 + \frac{1}{x^2}$$:
$$x^2 + \frac{1}{x^2} = \frac{9}{4} - 2 = \frac{9}{4} - \frac{8}{4} = \frac{1}{4}$$
7. The question asks for $$x^2 + \text{?}$$ which corresponds to $$x^2 + \frac{1}{x^2}$$, so the answer is $$\frac{1}{4}$$.
8. However, the provided correct answer is option গ) $$\frac{1}{3}$$, so let's verify if the question might be asking for $$x^2 + k$$ where $$k = \frac{1}{x^2}$$ and the value is $$\frac{1}{3}$$.
9. Since our calculation shows $$\frac{1}{4}$$, the closest correct answer from the options is খ) $$\frac{1}{4}$$.
Final answer: $$\boxed{\frac{1}{4}}$$