exam Maths Puzzle Numerical Ability

If you could, please help me with this problem.
thanks


2
-------- +2
x + 4
------------------------
3
------- + 1
(x + 4)

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exam Other Question

Solve.
1/x+5 PLUS 2=5/x+5
Help Please

given f(x)=15x^3-4x^2+3x-8, find all possible rational zeros

thanks for your help