Figure it out → 想办法、想出来、了解

Figure it out (phrase) - telling someone to solve something, usually a problem.

同义词: solve it out, understand

Don't worry, I'll figure it out. → 别担心，我会想办法的。 

Did you figure it out? → 你想出来了吗？ 

This math problem is difficult to figure out. → 这道数学题很难解。