SOLUTION: I need help solvings this problem the question says to find the determant by using expansion by minor numbers | -3 5 1 | | 5 -3 2 | } 2 2 2 |

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Question 455380: I need help solvings this problem the question says to find the determant by using expansion by minor numbers
| -3 5 1 |
| 5 -3 2 |
} 2 2 2 |

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
| -3 5 1 |
| 5 -3 2 |
| 2 2 2 |
------------
Use the top row
Det = -3*(-6-4) -5*(10-4) +1*(10+6)
= 30 - 30 + 16
= 16