Can you tell me how to work the scientific calculator that's on the computer?

I’m dealing with questions like (5m^2)^4. Also, another question I had was like [(5)^2]^2, and those parenthesis are important. However, I can’t figure out how to enter the parenthesis along with the numbers on the calculator.
Also, if you want to tell me an easy way to figure out how to answer these questions I’d appreciate that too.
Thanks Ya’ll