Questão 15: Classifique como verdadeiro (V) ou falso (F).
1. ( ) 27.22 = 29
2. ( ) (73)2 = 75
3.:( ) (5+2)2 = 52 + 22
4. ( ) 103 : 105 = 10-2

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field