SOLUTION: write the determinant -9-7 4 5

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Question 58741: write the determinant
-9-7
4 5
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Rule let D be determinant:
a b
c d
D=ad-bc
write the determinant:
-9-7
4 5
D=-9(5)-(-7)(4)
D=-45+28
D=-17
Happy Calculating!!!