Which properties are best used prove a quadrilateral is a rhombus?
a) Diagonals are congruent and perpendicular.
Ob) Diagonals bisect and are perpendicular.
C) Opposite sides are parallel and congruent.
d) Opposite sides are congruent.

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,

The last answer choice