Řeš v \( \mathbb{R} \) rovnici:
\( \left|x+x^{2}\right|=\left|4-x^{2}\right|-|2+2 x| \)
\( K=\left\{-2 ; 1\right\} \)
\( K=\left\{-\frac{3}{2} ; \frac{1}{2}\right\} \)
\( K=\left\{-\frac{1}{2} ; \frac{3}{2}\right\} \)
\( K=\left\{-1 ; 2\right\} \)