Question

Me ajudem eu estou com duvida é pra minha prova ajudemm pfvv

Answer 1

$\frac{(-5)^{2}- 4^{2} + (\frac{1}{5})^{0} }{3^{-2} +1} =\\\\\frac{25 - 16 + 1}{(\frac{1}{3})^{2} + 1 } =\\\\\frac{10}{\frac{1}{9} + 1} =\\\\\frac{10}{\frac{1+ 9}{9} } =\\\\\frac{10}{\frac{10}{9} } =\\\\10 . \frac{9}{10} =\\\\\frac{90}{10} = 9$