Question

questions 3 and 4 need help (attached file)

Answer 1

first one is the 3rd one

question 4

it would be x^4 you get rid of the bottom because that is what it simplifies too but then you gotta write

part 2

you can do anything

like
4x^4/2x^2
which would be
2x^2

Answer 2

thanks bro really helped