exam Maths Puzzle Numerical Ability

This one is not working for me could I see a step by step please.

x^4+x^3-8x^2+x-6 / x^2+1

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exam Other Question

solve the following system of linear equations and if possible express the answer as an ordered pair

3x-5y=1
10y=6x-1 parallelogram abcd is not a rectangle the points of a b c and d are (-2,2) (6,5) (4,0) (-4,-3) prove that paralleogram is not a rectangle