Respostas

2013-08-01T20:14:44-03:00
1) 7² - (2.5 +1)^0 + [2^6+(-3)^4-(2¹-6^0):[(-2)^4-(-2)³]
49-1+ 144:24
48+6
54 => 1954

2) (2³)² + 3^7-².³ - (-3)^7 : 9²
64+3+2187:81
67+27
94 => 1994