Respostas

2014-02-04T19:08:12-02:00
(-15)² x (-2) + 3 =
(-15)²=225
225 x (-2) +3= -450 +3 = -447
1 4 1
2014-02-04T19:08:34-02:00
(-15)². (- 2 ) + 3
225 . (-2) + 3 
-450 + 3
-447
3 5 3