A ∈ M_(2×2) , A^3 = A^2 + A ⇒ det ( A −2I )=?


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Question Number 213435 by mnjuly1970 last updated on 05/Nov/24

$A \in M_{2 \times 2}, A^{3} = A^{2} + A$ $\Rightarrow d e t (A - 2 I) = ?$
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