If the expression
-3xy - x² y² +1 is evaluated when x= -1 and y= -1, then what is the exact value?
-3xy - x² y² +1 is evaluated when x= -1 and y= -1, then what is the exact value?
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answer:
-2
solution
-3(-1)(-1) - (-1)²(-1)² + 1
-3 - 1 + 1 + 1
-4 + 2
-2