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Mathematics 24 Online
OpenStudy (anonymous):

√9x+62=x

OpenStudy (curry):

x^2-9x-62

OpenStudy (curry):

(x-18)(x+9)_

jimthompson5910 (jim_thompson5910):

\[\large \sqrt{9x+62}=x\] \[\large 9x+62=x^2\] \[\large 0=x^2-9x-62\] From here, use the quadratic formula to solve for x. Don't forget to check any possible answers you get.

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

1/2(9-√329) but I think that is wrong.

jimthompson5910 (jim_thompson5910):

You're very close, it should be \[\frac{9+\sqrt{329}}{2}\] You should have gotten 2 solutions, but one does not work.

OpenStudy (anonymous):

still not getting the right answer

jimthompson5910 (jim_thompson5910):

show me your work

OpenStudy (anonymous):

I can get the decimal but not the right answer

jimthompson5910 (jim_thompson5910):

Again, the only answer is \[\large x=\frac{9+\sqrt{329}}{2}\] See the attached image for the steps in getting the answer.

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