Simplify each expression and state any non-permissible values. ( 3 marks - show your work)

x divided by x^2-3x-4 subtracted by 4 divided by x +1

Why not type

x divided by x^2-3x-4 subtracted by 4 divided by x +1
as
x/(x^2 -3x - 4) - 4/(x+1)

then

= x/( (x+1)(x-4) - 4/(x+1)
now your common denominator is (x+1)(x-4)

take over