exam Maths Puzzle Numerical Ability

i need urgent halp on this question please x^2+1/x^2-2-3x+3/x thanks

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exam Other Question

1/3(x+5)-x/4>1/2(5-x)+x/6 I am trying to solve problem 10 on page 419. I do not understand how to find the base, when the area is already given in a triangle