If \[A=\left[ \begin{matrix} 1 & 2 \\ 0 & 3 \\ \end{matrix} \right]\] is a \[2\times 2\] matrix and \[f(x)={{x}^{2}}-x+2\] is a polynomial, then what is f(A)?

\[\left[ \begin{matrix} 2 & 6 \\ 0 & 6 \\ \end{matrix} \right]\]

\[\left[ \begin{matrix} 1 & 7 \\ 1 & 7 \\ \end{matrix} \right]\]

\[\left[ \begin{matrix} 2 & 6 \\ 0 & 8 \\ \end{matrix} \right]\]

\[\left[ \begin{matrix} 2 & 6 \\ 0 & 7 \\ \end{matrix} \right]\]

If \[A=\left[ \begin{matrix} 1 & 2 \\ 0 & 3 \\ \end{matrix} \right]\

1.	If \[A=\left[ \begin{matrix} 1 & 2 \\ 0 & 3 \\ \end{matrix} \right]\] is a \[2\times 2\] matrix and \[f(x)={{x}^{2}}-x+2\] is a polynomial, then what is f(A)?
A.	\[\left[ \begin{matrix} 1 & 7 \\ 1 & 7 \\ \end{matrix} \right]\]
B.	\[\left[ \begin{matrix} 2 & 6 \\ 0 & 8 \\ \end{matrix} \right]\]
C.	\[\left[ \begin{matrix} 2 & 6 \\ 0 & 6 \\ \end{matrix} \right]\]
D.	\[\left[ \begin{matrix} 2 & 6 \\ 0 & 7 \\ \end{matrix} \right]\]
Answer» C. \[\left[ \begin{matrix} 2 & 6 \\ 0 & 6 \\ \end{matrix} \right]\]

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If \[A=\left[ \begin{matrix} 1 & 2 \\ 0 & 3 \\ \end{matrix} \right]\] is a \[2\times 2\] matrix and \[f(x)={{x}^{2}}-x+2\] is a polynomial, then what is f(A)?

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