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Mathematics 7 Online
OpenStudy (anonymous):

Use the quadratic formula to solve the equation x^(2)-20=0

OpenStudy (anonymous):

\[x=\pm \sqrt{20}\]

OpenStudy (anonymous):

\[x= \pm2\ \sqrt{5}\]

OpenStudy (anonymous):

\[badge\ plz\]

OpenStudy (anonymous):

the solution set is

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