Find the characteristic polynomial of the matrix, using either a cofactor expansion or the special formula for 3x3 determinants. [Note: Finding the characteristic polynomial of a 3x3 matrix is not easy to do with just row operations, because the variable.A is involved.] 10 1 -32-2 06 0 *** The characteristic polynomial is A -5A+13A-12 (Type an expression using λ as the variable.)

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