Find the value of the expression
$(x^{2} + x + 1) at x = - 1.$

-3

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-1

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Solution

The correct option is C 1
$At x = - 1,$

$x^{2} + x + 1 = (- 1)^{2} + (- 1) + 1 = 1 - 1 + 1 = 1$

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