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How do you do 81x^2=49

How do you do 81x^2=49
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How do you do 81x^2=49

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User Kturner
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1 Answer

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81x^2=49\ \ \ \ /:81\\\\x^2=(49)/(81)\\\\x=\pm\sqrt(49)/(81)\\\\x=-(7)/(9)\ \vee\ x=(7)/(9)
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User PovilasID
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