Rieš v \( \R \) rovnicu:
\( \normalsize\left(a-2\right)^2\cdot\left(2a+1\right)=0 \)
\( \large K=\left\{{-\frac12;2}\right\} \)
\( \large K=\left\{{-\frac12;3}\right\} \)
\( \large K=\left\{{-\frac12;1}\right\} \)
\( \large K=\left\{{-\frac13;2}\right\} \)