Answer
$-\frac{1}{32}, 1$
Work Step by Step
Let $u=m^{1/5}$, we have $2u^2-u-1=0$ or $(2u+1)(u-1)=0$, thus $u=-\frac{1}{2}, 1$ and $m=u^5=-\frac{1}{32}, 1$
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