Question

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$find \: the \: value \: of \: \frac{ - 2}{3} {}^{ - 2} + 3 {}^{ - 2}$

Answer 1

$\frac{ - 2}{3} - 2 + {3}^{ - 2} \\ \frac{ - 2}{3} - 2 + \frac{1}{ {3}^{2} } \\ \frac{ - 2}{3} - 2 + \frac{1}{9} \\ \frac{ - 6 - 18 + 1}{9} \\ \frac{ - 23}{9}$
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