সঠিক উত্তরঃ
C.
16
Explanation:
![](\"https://testmozusercontent.com/ugc/2021-11-27/592826d5-7679-4671-a4f4-f1a25f098459-image.png\")
Another Explanation (5): ```html
দেয়া আছে, \(x^2 - 4x + 4 = 0\)
\((x-2)^2 = 0\)
অতএব, \(x = 2, 2\)
সুতরাং, \(\alpha = 2\) এবং \(\beta = 2\)
এখন, \(\alpha^3 + \beta^3 = 2^3 + 2^3 = 8 + 8 = 16\)
অতএব, \(\alpha^3 + \beta^3\) এর মান 16। 🎉
```