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OpenStudy (anonymous):
using the quadratic formula solve the equation x^2-7x-6=0. I get 7+-sq.rt.73/14. Is this right?
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OpenStudy (anonymous):
sorry [7 +- sqrt(7^2 - 4 * 1 * -6)] / 2
OpenStudy (anonymous):
Oh, I see what I did wrong with the denom. so my answer is 7+- sq rt. 73/2?
OpenStudy (anonymous):
yes .. its everything divided by 2
OpenStudy (anonymous):
thanks
OpenStudy (anonymous):
\[\frac{ 7 \pm \sqrt{73} }{ 2 }\]
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OpenStudy (anonymous):
exactly
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