if A=[[2,-3],[-4,1]] then (3A^2+12A)=?...

if `A=[[2,-3],[-4,1]]` then `(3A^2+12A)=?`

A

`[[72,-63],[-84,51]]`

B

`[[72,-84],[-63,51]]`

C

`[[51,63],[84,72]]`

D

`[[51,84],[63,72]]`

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The correct Answer is:

C

`because A^(2) = [[2,-3],[-4,1]][[2, -3],[-4, 1]]= [[16,-9],[-12,13]]`

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