Enter the solutions:

$\displaystyle \frac{{-{11}+\sqrt{{{73}}}}}{{{8}}},\frac{{-{11}-\sqrt{{{73}}}}}{{{8}}}$

$\displaystyle {u}=$ (Express your answer in radical form. If there is more than one answer, enter all answers, separated by commas. If no real solution exists, enter DNE.)

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