Use the given definition to find f(A): If f(x) = ao + a¡x + a2x2 + •* + anx" is a polynomial function, then for a square matrix A, f(A) = aoI + a¡A + a¿A² + ... + anA". 2 0 f(x) = 2 – 6x + x2, 4 6 f(A) =

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