No replies to this topic

[hoanggiang9696]

$\left\{\begin{matrix}4a^{3}+12a^{2}+9a+(b-2)(\sqrt{2b-1})=0 & & \\ 2a^{2}+5a+3+\sqrt{(1-b)(2b-1)}=0 & & \end{matrix}\right.(a,b\epsilon R)$