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Nev
Nev Nev
  • 26-04-2014
  • Mathematics
Answered

How do you do 81x^2=49

Verified Answer :

Anonymous Anonymous
  • 14-07-2014

\(81x^2=49\ \ \ \ /:81\\\\x^2=\frac{49}{81}\\\\x=\pm\sqrt\frac{49}{81}\\\\x=-\frac{7}{9}\ \vee\ x=\frac{7}{9}\)

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