bother (someone's) brains

Translations
напрягать мозги
You don't need to bother your brains with this problem.
Тебе не нужно напрягать свои мозги над этой проблемой.
Definitions
To trouble, disturb, or preoccupy someone's thoughts; to make someone think hard or worry about something.
Words
brain

noun
мозг
bother

verb
беспокоить