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Brendan
Mathematics
29 January, 03:51
Evaluate - x2 + x-1 forx=-1
+3
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2
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Edith Huang
29 January, 03:52
0
0
Step-by-step explanation:
the equation after plugging in "x" is
- (-1) * (2) + (-1) - 1
then after multiplication it is
2-1-1
this becomes 0
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Elisa Finley
29 January, 03:55
0
-3
Step-by-step explanation:
-x^2 + x-1
Let x = - 1
- (-1) ^2 + (-1) - 1
- 1 - 1 - 1
-3
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