Radicali !!repede,dau coroana
![Radicali Repededau Coroana class=](https://ro-static.z-dn.net/files/da8/32da8faad8cd58a615f7eb4a285cbdcc.png)
[tex]4 \sqrt{5} + 5 \sqrt{3} - 5 \sqrt{5} - 9 \sqrt{5} = - 10 \sqrt{5} + 5 \sqrt{3} [/tex]