搞定 (gǎodìng) Make it/ Work out/ Get it done
The character “搞 (gǎo)” means to make or to do and “定 (dìng)”
means to calm down or to decide.
Wǒ xiāngxìn nǐ yídìng néng gǎodìng zhè jiàn shì.
I believe you can get the job done.