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x2 = 64?

 Aug 18, 2016
 #1
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you need to have x by its self on on e side of the equation. You can do this by taking the square root of each side. 

 Aug 18, 2016
 #2
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Good answer Guest #1.

 

Example: If you have x^2 = 25......

\(x^2=25\\ x=\pm\sqrt{25}\\ \;\;=\pm 5\\ \therefore\text{ x = 5 or x = -5}\)

 Aug 18, 2016

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