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This is my homework, I don't have any idea, so I want a hint for this problem.

Let $R_1 = \mathbb{Z}_{11}[X]/\langle X^2 - 2\rangle$ and $R_2 = \mathbb{Z}_{11}[X]/\langle X^2 - 3\rangle$. Show that $R_1\approxeq R_2$.

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