Can someone me with this question ?

5. which description does not guarantee that a quadrilateral is a squar ajo is a parallelogram with perpendicular diagonals 0% has all sides congruent and all angles congruent o has all right angles and has all sides congruent 10% is both a rectangle and a rhombus 30%

Which one is the correct answer, and why?

If f (x) = 2x2 +5/(x-2), complete the following statement: f(6) =