exam Maths Puzzle Numerical Ability

I need help with this problem, please. It is:

(3x + 2x^3 + 114)/(x+4)

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exam Other Question

(1)proof that the contrapositive of the statement is logically equivalant to the statement.
(2)Proof also that the converse statement is logically equivalant to the inverse of the statement. Write three quadratic equations with a,b,c (coefficients of x^2, x and the constant) as
1. integers
2. rational numbers
3. irrtional numbers