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Mathematics 11 Online
OpenStudy (anonymous):

using the quadratic formula solve the equation x^2-7x-6=0. I get 7+-sq.rt.73/14. Is this right?

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):

\[\frac{ 7 \pm \sqrt{73} }{ 2 }\]

OpenStudy (anonymous):

exactly

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