Which of the following are like radicals? Check all of the boxes that apply

If a baseball player hits a baseball from 4 feet off the ground with an initial velocity of 64 feet per second, how long will it take the baseball to hit the ground? use the equation h = −16t2 + 64t + 4.

And explain how you got it so i can understand future problems : 3

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5