FlavãoUndergraud FlavãoUndergraud
  • 02-03-2018
  • Mathematics
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a=(-2+4/5)² qual valor de A?

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Jr04
Jr04 Jr04
  • 02-03-2018
A=(-2+4/5)² qual valor de A?

[tex]A=\left(-2+ \dfrac{4}{5}\right)^2 \\ \\ \\ A=\left( \dfrac{-2*5+4}{5}\right)^2 \\ \\ \\ A=\left( \dfrac{-10+4}{5}\right)^2 \\ \\ \\ A=\left( \dfrac{-6}{5}\right)^2 \\ \\ \\ A=\left( \dfrac{(-6)^2}{(5)^2}\right) \\ \\ \\ \boxed{ A= \dfrac{36}{25} } \\ \\ \\ [/tex]
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