Okay so these are the 4 rational expressions that I needstep by step answerson:

1. √(24a^4b^5c^9)

2. 2√(50) + 13√(200)

3. (rewrite the radical expression in simplier radical form) - I have no idea what that means. 3√(5) (5√(3) + 2√(12))

4. (Solve the equation using your knowledge of radicals) - does it mean to just solve the equation? √(x + 12) = x

sorry it's a lot, these are the four I didn't understand.