Question

PLEASE HELP MEEEE!!!!

Evaluate x⁻² for x= -3
(No options)

Answer 1

1/9

Explanation:

You want the value of x^(-2) for x=-3.

Evaluation

The expression can be rewritten as ...

`x^(-2)=(1)/(x^2)\\\\\\=(1)/((-3)(-3))\qquad\text{for $x=-3$}\\\\\\=\boxed{(1)/(9)}`

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Additional comment

The minus sign is part of each factor, so it is replicated the same number of times that 3 is. Two negatives make a positive.

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