exam Maths Puzzle Numerical Ability

Divide: 2x^4-3x^3+x+1 / 2x^2+x+1. I can't seem to understand this one.

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exam Other Question

Solve the system of equations:
9^(3x-y)=(1/81)^-1
(sqrt5)^(2x-y)=1 Find and write out in rational form the term of (3x^2/2 - 1/3x)^12 that does not contain x.