A solid brick is formed by gluing together eighty 1 x 1 x 1 cubes. The brick has as little surface area as possible. The two faces
with the least area are painted blue. What is the number of square
units in the area of one blue face?

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,