GPT:$(\sin x-2)(\sin ^{2}x-\sin x+1)=3\sqrt[3]{3\sin x-1}+1$
$\sin x=a \left | a \right |\leq 1
\Leftrightarrow (a-2)(a^{2}-a+1)=3\sqrt[3]{3a-1}+1
\Leftrightarrow (a^{3}-3a^{2}+3a-1)-1=3\sqrt[3]{3a-1}+1
\Leftrightarrow (a-1)^{3}-2=3\sqrt[3]{3a-1}$
a-1=t $-2\leq t\leq 0$
$t^{3}-2=3\sqrt[3]{3t+2}$
$\Rightarrow \sqrt[3]{(3t+2)}=u$
$\Leftrightarrow t^{3}-2=3u$
$u^{3}-2=3t$
=> u=t
=> t=1
=> a=0
=>sinx=0
=>$x=k\pi$