Respostas

2014-04-06T15:54:41-03:00
8²-(-8)²
8² + 8²
64 + 64
128


√16+3²
√16+9
√25
5
1 5 1
2014-04-06T15:55:25-03:00
8² -(-8²) = 64 + 64 = 128

√16+3² = √16+9 = √25 = 5