exam Maths Puzzle Numerical Ability

can you help me solve and check?

2/5=x-2/20

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exam Other Question

The graph of the rational function:
f(x)= x+1/x^2-3x+2
has a horizontal asymptote with equation y=0. Is this true?
Thank you. after you find x, your supposed to substitue it in. I dont know how to find y.