Question

(-2-5/3)-²me ajude por favor pessoal

Answer 1

Lembrete:

⇒ $\left(\frac{a}{b}\right)^{^c}=\left(\frac{b}{a}\right)^{^c}=\frac{b^c}{a^c}$
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• Interpretação 01:

$\left(\frac{-2-5}{3}\right)^{-2}\\\left(\frac{-7}{3}\right)^{-2}\\\left(-\frac{3}{7}\right)^2\\\frac{3^2}{7^2}\\\boxed{\bold{\frac{9}{49}}}$

• Interpretação 02 (Mais correta com sua escrita): 

$\left(-2-\frac{5}{3}\right)^{-2}\\\left(\frac{-6}{3}-\frac{5}{3}\right)^{-2}\\\left(\frac{-6-5}{3}\right)^{-2}\\\left(\frac{-11}{3}\right)^{-2}\\\left(-\frac{3}{11}\right)^2\\\frac{3^2}{11^2}\\\boxed{\bold{\frac{9}{121}}}$