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OpenStudy (anonymous):
Solve. x2 = 10x – 20
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OpenStudy (anonymous):
x=5+-sqrt(5)
OpenStudy (anonymous):
\[x^2-10x=20\] \[(x-5)^2=20+25=45\] \[x-5=\pm\sqrt{45}=\pm3\sqrt{5}\] \[x=5\pm3\sqrt{5}\]
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