If $\alpha$ and $\beta$ are the roots of the equation $2\mathrm{x}(2\mathrm{x}+1)=1$, then $\beta$ is equal to: (1) $2\alpha(\alpha+1)$ (2) $-2\alpha(\alpha+1)$ (3) $2\alpha(\alpha-1)$ (4) $2\alpha^{2}$
If $\alpha$ and $\beta$ are the roots of the equation $2\mathrm{x}(2\mathrm{x}+1)=1$, then $\beta$ is equal to:\\
(1) $2\alpha(\alpha+1)$\\
(2) $-2\alpha(\alpha+1)$\\
(3) $2\alpha(\alpha-1)$\\
(4) $2\alpha^{2}$