exam Maths Puzzle Numerical Ability

Could use any help available. Thanks
5i/3-i

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exam Other Question

(1) f(x) = 3x - 2 / x - 5

x-intercepts: __________

y-intercepts: __________

Horizontal asymptote(s): ___________

Vertical asymptote(s): ____________

Domain: ________ f(x)=2x^2-x+7 ; g(x)=x-1

find (f-g)(x)

I don't know if I am to just subtract or put in the proper way. I am lost.