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The solution of det (A - lamda I(2)) = 0...

The solution of det `(A - lamda I_(2)) = 0` be 4 and 8 and `A= ((2,3),(x,y))`. Then
(`I_(2)` is identity matrix of order 2)

A

`x = 4, y= 10`

B

`x = 5, y= 8`

C

`x= 3, y= 9`

D

`x= -4, y= 10`

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