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OpenStudy (anonymous):
solve the quadratic equation by using the definition of square root. and write the solution in radical form.
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OpenStudy (anonymous):
\[y ^{2}-80=0\]
OpenStudy (anonymous):
Add 80 to both sides to get y^2=80 Square root both sides to isolate a single y as y=sqrt(80) It technically has two answers. y=sqrt(80) and y=-sqrt(80)
OpenStudy (anonymous):
ohh ok, i wasn't sure if it was simplified to 40. ok thanks
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