If a matrix A is such that\[3{{A}^{3}}+2{{A}^{2}}+5A+I=0,\] then what is \[{{A}^{-1}}\] equal to?

If a matrix A is such that\[3{{A}^{3}}+2{{A}^{2}}+5A+I=0,\] then what

1.	If a matrix A is such that\[3{{A}^{3}}+2{{A}^{2}}+5A+I=0,\] then what is \[{{A}^{-1}}\] equal to?
A.	\[-(3{{A}^{2}}+2A+5I)\]
B.	\[3{{A}^{2}}+2A+5I\]
C.	\[3{{A}^{2}}-2A-5I\]
D.	\[(3{{A}^{2}}+2A-5I)\]
Answer» B. \[3{{A}^{2}}+2A+5I\]

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If a matrix A is such that\[3{{A}^{3}}+2{{A}^{2}}+5A+I=0,\] then what is \[{{A}^{-1}}\] equal to?

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