In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If 14 boys and 10 girls are competing, how many
different ways could the six medals possibly be given out?

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,